book cd dvd
book
book
book
cd
cd
dvd
Italian bookshop with a wide catalogue of 450.000 titles. On Unilibro.com you can buy books,cds and dvds,  you can publish on line ebooks, consult university theses, notes of the lessons, and send gifts. Shipping world-wide.






















Richard Woo ( Libri  su Unilibro.it Libri di Richard Woo su Unilibro.it )

1911

Wooldridge Connie Nordhielm, Walz Richard (ILT) Title : Just Fine the Way They Are
Author: Wooldridge Connie Nordhielm, Walz Richard (ILT)
Publisher: Calkins Creek

Follows the development of roads in the United States--and the new forms of transportation that used them--from the National Highway of 1805 through railroads and paved roads for bicycles and automobiles to the interstate system.
€ 15,30

Richard Woods Title : Meister Eckhart
Author: Richard Woods
Publisher: CONTINUUM ACADEMIC PUBLISHING

In this collection of updated articles and lectures, Woods (theology, Dominican U. and trustee, The Eckhart Society) attempts to make the mystical teachings of Meister Eckhart (d. 1328) accessible to readers who may not be familiar with Eckhart, while still engaging Eckhart scholars. An introductory chapter reviews Eckhart's life and basics of his doctrine. Of special interest is a chapter on Eckhart's Christology, an element of his theological doctrine that is often overlooked. Other topics include women's roles in spirituality and church life, the sacredness of creation, the meaning of detachment, the place of prayer, and Eckhart's insights into the challenges of pain and suffering. A final chapter looks at the relevance of Eckhart's thought for world religions. Annotation ©2011 Book News, Inc., Portland, OR (booknews.com)
€ 22,50
1910

Stillman Andrea G. (EDT), Woodward Richard B., Adams Ansel (PHT) Title : Ansel Adams in the National Parks
Author: Stillman Andrea G. (EDT), Woodward Richard B., Adams Ansel (PHT)
Publisher: Ansel Adams

With more than two hundred photographs - many rarely seen and some never before published - this is the most comprehensive collection of Ansel Adams' photographs of America's national parks and wilderness areas. For many people, Yosemite, Yellowstone, Glacier National Park, and other iconic American wildlands exist in the mind's eye as Ansel Adams photographs. The legendary photographer explored more than forty national parks in his lifetime, producing some of the most indelible images of the natural world ever made. One of the twentieth century's most ardent champions of the park and wilderness systems, Adams also helped preserve additional natural areas and protect existing ones through his photographs, essays, and letter-writing campaigns.

Edited and with commentary by Andrea G. Stillman, the foremost expert on Adams' work, this landmark publication includes quotations by Adams on the making of numerous photographs, an essay by journalist and photography critic Richard B. Woodward, and a selection of additional writings on Adams, photography, and the environment. This is a must-own for Ansel Adams fans and all those who, like Adams, treasure America's wilderness.

€ 35,70

Richard Woodman Title : History of the British Merchant Navy
Author: Richard Woodman
Publisher: History Press

Plunged into depression after a brief, post-war boom, the ships and men of the British merchant navy found themselves called upon to repeat their sacrifice to the menace of German hostility within 20 years of the end of the 'war to end all wars.' For over three years, until the Royal Navy bettered the German U-Boat, the merchant navy maintained the supply of food, raw materials, and the sinews of war against appalling odds until victory ushered in a new age of peace and prosperity. It was not to last for long. Within a generation the merchant navy had all but vanished, its companies wound up, its men and women cast aside, its loss to the nation yet to be appreciated in one of the quietest yet most fundamental changes to affect this country at the end of the millennium. The final installment in Richard Woodman's ground-breaking five-volume series is as richly illustrated as the previous four and draws to a conclusion this critically acclaimed study into the history and development of the merchant navy.

€ 38,10

Richard Woodside Title : International A Level Physics Revision Guide for CIE
Author: Richard Woodside
Publisher: HODDER EDUCATION TEXTBOOKS


€ 45,70

Woods David D., Dekker Sidney, Cook Richard, Johannesen Leila, Sarter Nadine Title : Behind Human Error
Author: Woods David D., Dekker Sidney, Cook Richard, Johannesen Leila, Sarter Nadine
Publisher: CRC Pr I Llc

This updated second edition of the 1994 original work on the rethinking of common beliefs about human error as a contributing factor to accidents and unplanned outcomes, provides engineers, designers and policy planners with a practical analysis of the complexities of process failures. The work is divided into sections covering problems with traditional notions of human error, complex systems failure, transforming knowledge into practical application, design induced error, and hindsight bias and productive reactions to failure. The work includes numerous tables and figures as well as case studies. The authors of this volume are academics in the fields of ergonomics, system safety, cognitive psychology and industrial engineering from universities in the US and Sweden. Annotation ©2011 Book News, Inc., Portland, OR (booknews.com)
€ 45,70

Woolley Richard Title : Tackling Controversial Issues in the Primary School
Author: Woolley Richard
Publisher: ROUTLEDGE

How do you broach family values with seven year olds? Can you help young children understand racism? Can you avoid bringing your own prejudices into the classroom?

Talking effectively about controversial issues with young children is a challenge facing every primary school teacher. Tackling Controversial Issues in the Primary School provides teachers with support and guidance as you engage with the more tricky questions and topics you and your pupils encounter.

Illuminated with case studies and examples of how teachers and children have confronted issues together, this book helps you understand your own perspectives and provides fresh approaches for the primary classroom.

It considers how best to work with parents and carers, whole-school policies for tackling issues, and ideas for circle time, setting up international links, school councils and buddying systems. The range of challenging topics covered includes:

  • family values
  • racism in mono and multi-cultural settings
  • democracy and citizenship
  • the environment and sustainability
  • consumerism, finances and media advertising
  • gender, health and identity
  • grief and loss.

For all student and practising primary teachers, Tackling Controversial Issues in the Primary School provides much needed support as you help your learners face complicated ideas, find their voice and get involved in the issues that they feel make a difference.


€ 40,20

Koch Richard, Lockwood Greg Title : Superconnect
Author: Koch Richard, Lockwood Greg
Publisher: W W Norton & Co Inc

In Superconnect, Richard Koch and Greg Lockwood show that success is less about who you are than how you connect-a chance meeting with an old colleague leads to a swanky new job; two businessmen collaborate online and cofound a successful start-up; a friend introduces a promising entrepreneur to a millionaire looking to invest. But why do these lucky breaks always happen to other people?

Personal and professional networks shape everything we do, but simply knowing that they exist won't help you harness your connections for maximum success. With an eye toward business applications, Superconnect outlines the new rules of our densely linked society. At the core of the analysis are three simple network components-strong relationships, weak relationships, and hubs-that interact in surprising, counterintuitive ways. Understanding how these components mesh, and connecting unrelated people, is the way to achieve in today's hyper-connected world.
€ 24,10

Koch Richard, Lockwood Greg, Hillgartner Malcolm (NRT) Title : Superconnect (CD Audiobook)
Author: Koch Richard, Lockwood Greg, Hillgartner Malcolm (NRT)
Publisher: Blackstone Audio Inc

Two network business specialists explain how to harness your personal and professional networks for maximum success, describing how three simple network components: strong relationships, weak relationships and hubs, can interact in surprising ways and connect unrelated people. Simultaneous.
€ 27,70

Koch Richard, Lockwood Greg, Hillgartner Malcolm (NRT) Title : Superconnect (CD Audiobook)
Author: Koch Richard, Lockwood Greg, Hillgartner Malcolm (NRT)
Publisher: Blackstone Audio Inc

Two network business specialists explain how to harness your personal and professional networks for maximum success, describing how three simple network components: strong relationships, weak relationships and hubs, can interact in surprising ways and connect unrelated people. Simultaneous.
€ 27,70

Wood Richard Title : Call Sign Rustic
Author: Wood Richard
Publisher: Smithsonian Inst Pr

President Richard Nixon could not keep American ground troops in Cambodia beyond June 1970 without authorization from Congress, which was not forthcoming. Not wanting to desert the anti-communist Lon Nol regime, he ordered top-secret, round-the-clock air support over Cambodia, and the Rustics were born.

Author Richard Wood flew as one of the Rustics, a group of forward air controllers who played a major part in staving off both the North Vietnamese and Pol Pot's Khmer Rouge guerilla forces. This three-year air war was so secret—managed directly from the White House—that there are no official records of it. Wood bases his book on his own experiences and those of the other pilots and Cambodians who participated in the operation. He recounts the Rustic's daring missions and portrays the friendships that developed between the pilots and the Cambodian field troops, commanders, and radio operators, who fought with courage and dedication.

The loss of American air support after August 15, 1973 eventually contributed to the fall of Cambodia and the horribly dark period of its history that will live in infamy as “the killing fields.”
€ 17,90

Lockwood John P., Hazlett Richard W. Title : Volcanoes
Author: Lockwood John P., Hazlett Richard W.
Publisher: Blackwell Pub

Volcanoes are essential elements in the delicate global balance of elemental forces that govern both the dynamic evolution of the Earth and the nature of Life itself. Without volcanic activity, life as we know it would not exist on our planet. Although beautiful to behold, volcanoes are also potentially destructive, and understanding their nature is critical to prevent major loss of life in the future.

Richly illustrated with over 300 original color photographs and diagrams the book is written in an informal manner, with minimum use of jargon, and relies heavily on first-person, eye-witness accounts of eruptive activity at both 'red' (effusive) and 'grey' (explosive) volcanoes to illustrate the full spectrum of volcanic processes and their products. Decades of teaching in university classrooms and fieldwork on active volcanoes throughout the world have provided the authors with unique experiences that they have distilled into a highly readable textbook of lasting value. Questions for Thought, Study, and Discussion, Suggestions for Further Reading, and a comprehensive list of source references make this work a major resource for further study of volcanology.

Volcanoes maintains three core foci:

  • Global perspectives explain volcanoes in terms of their tectonic positions on Earth and their roles in earth history
  • Environmental perspectives describe the essential role of volcanism in the moderation of terrestrial climate and atmosphere
  • Humanitarian perspectives discuss the major influences of volcanoes on human societies. This latter is especially important as resource scarcities and environmental issues loom over our world, and as increasing numbers of people are threatened by volcanic hazards

Readership

Volcanologists, advanced undergraduate, and graduate students in earth science and related degree courses, and volcano enthusiasts worldwide.


A companion website is also available for this title at www.wiley.com/go/lockwood/volcanoes

€ 216,80

Lockwood John P., Hazlett Richard W. Title : Volcanoes
Author: Lockwood John P., Hazlett Richard W.
Publisher: Blackwell Pub

Volcanoes are essential elements in the delicate global balance of elemental forces that govern both the dynamic evolution of the Earth and the nature of Life itself. Without volcanic activity, life as we know it would not exist on our planet. Although beautiful to behold, volcanoes are also potentially destructive, and understanding their nature is critical to prevent major loss of life in the future.

Richly illustrated with over 300 original color photographs and diagrams the book is written in an informal manner, with minimum use of jargon, and relies heavily on first-person, eye-witness accounts of eruptive activity at both 'red' (effusive) and 'grey' (explosive) volcanoes to illustrate the full spectrum of volcanic processes and their products. Decades of teaching in university classrooms and fieldwork on active volcanoes throughout the world have provided the authors with unique experiences that they have distilled into a highly readable textbook of lasting value. Questions for Thought, Study, and Discussion, Suggestions for Further Reading, and a comprehensive list of source references make this work a major resource for further study of volcanology.

Volcanoes maintains three core foci:

  • Global perspectives explain volcanoes in terms of their tectonic positions on Earth and their roles in earth history
  • Environmental perspectives describe the essential role of volcanism in the moderation of terrestrial climate and atmosphere
  • Humanitarian perspectives discuss the major influences of volcanoes on human societies. This latter is especially important as resource scarcities and environmental issues loom over our world, and as increasing numbers of people are threatened by volcanic hazards

Readership

Volcanologists, advanced undergraduate, and graduate students in earth science and related degree courses, and volcano enthusiasts worldwide.


A companion website is also available for this title at www.wiley.com/go/lockwood/volcanoes

€ 103,80

Greenwood Daphne T., Holt Richard P. F., Power Thomas M. (FRW) Title : Local Economic Development in the 21st Century
Author: Greenwood Daphne T., Holt Richard P. F., Power Thomas M. (FRW)
Publisher: M E Sharpe Inc

A comprehensive treatment of quality of life, sustainability, and local economic development, this book links existing academic knowledge to real world problems of policy making. It emphasizes the need for a better understanding of how economic theories and empirical economic research can contribute to the public policy debates in state and local government. These include the sources of economic growth and development; the relationship of both to quality of life and sustainability; the importance of local as well as global action to environmental sustainability; the roles of income inequality, poverty, and economic opportunity in economic development; the importance of land-use planning to quality of life and sustainability, the relationship between economic development and state and local tax and regulatory policies; and the use of strategies that incorporate quality of life and sustainable development into economic development.

'Thoughtful new insights about what is needed to reshape economic development for 21st century priorities and challenges.'---Richard Lamm, Professor, University of Denver and former governor of Colorado

'A very readable book for non-economists it makes a compelling case for the natural compatibility of quality of life factors and sustainable economic development. It illustrates not only why traditional business incentives are not cost-effective but also suggests what to do in place of them. In particular, the authors call for entrepreneur-ship and education while emphasizing the tight interconnections among economy, environment, and society. In Littleton, Colorado, we have practiced these same principles for over two decades with our Economic Gardening Program and have had considerable success at economic development without significant population growth. This is the future of economic development.'---Chris Gibbons, Director of Business/Industry Affairs, Littleton, Colorado

'This new book raises important issues on the relationship between traditional economic growth on the one hand and the quality of life and sustainable development on the other hand. Though the policy implications are about the best ways of 'acting locally,' the book has important implications for policy makers and public officials on the national level as well.'---Edward Wolff, Professor of Economics, New York University
€ 54,20

Haeussler Ernest F. Jr., Paul Richard S., Wood Richard J. Title : Introductory Mathematical Analysis for Business, Economics, and the Life and Social Sciences + Student Solutions Manual
Author: Haeussler Ernest F. Jr., Paul Richard S., Wood Richard J.
Publisher: Pearson College Div


€ 217,10

Ford Anne, Thompson John-Richard (CON), Woodruff Judy (FRW) Title : A Special Mother
Author: Ford Anne, Thompson John-Richard (CON), Woodruff Judy (FRW)
Publisher: Harpercollins

From the author of Laughing Allegra and On Their Own, a reassuring and invaluable book filled with personal stories and practical guidance to help parents of a child just diagnosed with a learning disability or related disorder.

More than three million children in the U.S. have been diagnosed with a learning disability, and their parents, more often than not, feel at a loss as to where to turn for both practical and emotional help. Anne Ford, who raised her severely learning disabled daughter Allegra and became an advocate for LD children, understands this all too well.

In A Special Mother, Ford offers reassurance and information on getting through the early period surrounding the diagnosis:
* Guidance about coping with the emotional upheaval and confusion of a child's diagnosis
* Information on getting an accurate diagnosis and understanding what it means
* Advice on caring for your own psychological needs
* Knowing your rights
* Suggestions for striking a balance between advocacy and obsession

Filled with voices of other mothers who have struggled with the issues of raising an LD child, A Special Mother lets parents know they are not alone, and that they can enable their child to thrive.

€ 15,20

Bray Martin, Kirke Kerry, Spurrier Nicola, Wilson Richard (CON), Holmwood Chris (CON) Title : Screening for Good Health
Author: Bray Martin, Kirke Kerry, Spurrier Nicola, Wilson Richard (CON), Holmwood Chris (CON)
Publisher: Paul & Co Pub Consortium

The definitive source on preventative health options available in Australia, this guide explains how screening works in Australia and outlines the tests that are available. Beginning with a series of essays on the main life stages?pregnancy, early childhood, young adult, middle life, older age?this handy, accessible reference recommends health tests specific to each state. Up-to-date research and an alphabetical listing of illnesses accompanied by their causes, symptoms, progression, and treatment are also included. Topics range from cervical cancer and Parkinson's disease to measles and the bird flu.


€ 26,90

Aufmann Richard N., Barker Vernon C., Lockwood Joanne S., Andersen Maria Haverhals Title : Beginning Algebra With Applications
Author: Aufmann Richard N., Barker Vernon C., Lockwood Joanne S., Andersen Maria Haverhals
Publisher: Cengage Learning


€ 31,10

Haeussler Ernest F. Jr., Paul Richard S., Wood Richard J. Title : Introductory Mathematical Analysis for Business, Economics, and the Life and Social Sciences
Author: Haeussler Ernest F. Jr., Paul Richard S., Wood Richard J.
Publisher: Pearson College Div

Haeussler, Paul, and Wood establish a strong algebraic foundation that sets this text apart from other applied mathematics texts, paving the way for readers to solve real-world problems that use calculus. Emphasis on developing algebraic skills is extended to the exercises—including both drill problems and applications. The authors work through examples and explanations with a blend of rigor and accessibility. In addition, they have refined the flow, transitions, organization, and portioning of the content over many editions to optimize learning for readers. The table of contents covers a wide range of topics efficiently, enabling readers to gain a diverse understanding.
€ 234,60

Sang David, Jones Graham, Woodside Richard, Chadha Gurinder Title : Cambridge As Level and a Level Physics Coursebook With Cd-rom
Author: Sang David, Jones Graham, Woodside Richard, Chadha Gurinder
Publisher: Cambridge Univ Pr


€ 44,30

Schickel Richard, Eastwood Clint (INT) Title : Clint
Author: Schickel Richard, Eastwood Clint (INT)
Publisher: Sterling Pub Co Inc

This will make your day!

A richly illustrated authorized retrospective celebrating the life and films of Clint Eastwood—written by renowned Time magazine film critic Richard Schickel and with an introduction by the legend himself.

Clint Eastwood is a Hollywood—and American—icon: beloved by critics and audiences alike, he has successfully carved out a unique career that’s spanned more than half a century and sixty movies. Acclaimed as both actor and director, as well as for his musical compositions, he’s won multiple Oscars for his achievements in front of and behind the camera.

This stunning volume presents a chronological look at his astonishing body of work, with special emphasis on Dirty Harry (1971), The Outlaw Josie Wales (1976), Tightrope (1984), Bird (1988), Unforgiven (1992), Mystic River (2003), Million Dollar Baby (2004), Gran Torino (2008), and his newest, Invictus, starring Matt Damon and Morgan Freeman, and set for a December 2009 release. Movie stills from memorable screen performances and revealing behind-the-scenes photos that show the filmmaker on the set are accompanied by Richard Schickel’s incisive commentary.


€ 32,80
2009

Lloyd Ann (ADP), Beechwood Beth (ADP), Richards Kitty (ADP), McElroy Laurie (ADP), Alexander Heather (ADP) Title : Hannah Montana Set II
Author: Lloyd Ann (ADP), Beechwood Beth (ADP), Richards Kitty (ADP), McElroy Laurie (ADP), Alexander Heather (ADP)
Publisher: Abdo Group

Collects six previously published novels featuring the adventures of teenager Miley Stewart, also known as the singing sensation Hannah Montana, as she handles family, friendship, and dealing with fame.
€ 121,30

Heywood Thomas, Rowland Richard (EDT) Title : The First and Second Parts of King Edward IV
Author: Heywood Thomas, Rowland Richard (EDT)
Publisher: Palgrave Macmillan

Edward IV (1599) was printed no less than six times up to 1626, and was one of the best loved plays of the early modern period, but this edition is the first since the 1870s. The play premiered at a moment when the representation of medieval history in any format was coming under the hostile scrutiny of the Elizabethan government. Yet the playwright produced a text which was at once generically complex (the play blurs the distinction between chronicle history and 'domestic' tragedy), brilliantly assured in its dramatic craftsmanship, and politically explosive.

The text of this new paperback edition has already been used by the actors at Shakespeare's Globe when they gave the first London performance of Edward IV for more than four centuries. By demonstrating the playwright's dextrous marshalling of a remarkable range of sources, and by examining afresh the dramatist's singular theatrical technique, this volume reopens an exciting if difficult play to a new generation of scholars and performers.

€ 28,00

Kent Herb, Smallwood David, Daley Richard M. (FRW) Title : The Cool Gent
Author: Kent Herb, Smallwood David, Daley Richard M. (FRW)
Publisher: Chicago Review Pr

When Herb Kent was a straight-A college student in the 1940s, his white professor told him, ?You have the best voice in class, but you'll never make it in radio because you're a Negro.” This did not deter the poor kid from the Chicago housing projects who had decided on a radio career at age five. It was just one more obstacle to face head on and overcome.

            Known as the Cool Gent, the King of the Dusties, and the Mayor of Bronzeville, Herb Kent is one of radio's most illustrious and legendary stars. This fascinating autobiography details both the high and low points of Herb's life while providing a vivid picture of black music, culture, and personalities from the 1950s to today. Herb had a typical rock-and-roll lifestyle?drugs, alcohol, all-night partying, and women?eventually hitting rock bottom, where he finally faced his personal demons. At least nine times Herb came close to death, but through it all, he maintained his debonair, classy persona and his uncanny knack for picking timeless tunes. And he didn't save only himself; along the way, he blazed new trails for all African Americans and remains a role model for today's top deejays.


€ 21,80

Swanson Richard A., Holton Elwood F. III Title : Foundations of Human Resource Development
Author: Swanson Richard A., Holton Elwood F. III
Publisher: Berrett-Koehler Pub

For students, researchers, and practitioners, Swanson (human resource development, U. of Texas at Tyler) and Holton (human resource and leadership development, Louisiana State U.) provide a textbook on human resource development (HRD) that focuses on the fundamentals and foundations of practice that does not focus on best practices. Instead, it addresses models, processes, history, theoretical and philosophical foundations, learning and performance paradigms and models, the role of HRD in high-level organizational and systems-level issues, and training and development and organization development. This edition has been revised, updated, and expanded to include new chapters on component HRD theories, policy and planning, technology, and globalization. Annotation ©2009 Book News, Inc., Portland, OR (booknews.com)
€ 65,20

Woodman Richard Title : Drinkwater. Un cutter del re
Author: Woodman Richard
Publisher: Mursia

1792. La Rivoluzione Francese, lo spettro della ghigliottina e la lotta per la conquista della Manica fanno da sfondo a un'avventura senza sosta, nella quale Nathaniel Drinkwater è destinato a una missione pericolosa e segretissima a bordo del Kestrel, un cutter da dodici cannoni. Drinkwater non solo affronterà ammutinamenti e pericolosi salvataggi, ma dovrà anche vedersela con gli intrighi del misterioso e insolente agente segreto Edouard Santhonax, il quale tenta in ogni modo di volgere a favore della Francia le sorti del conflitto in corso, che culminerà con la storica battaglia di Camperdown.
€ 17,00
2008

Woods Richard J. Title : Wellness
Author: Woods Richard J.
Publisher: Veritas Pubns


€ 23,90

Giertz Bo, Wood Richard (TRN), Erickson Bror (TRN) Title : To Live with Christ
Author: Giertz Bo, Wood Richard (TRN), Erickson Bror (TRN)
Publisher: Concordia Pub House


€ 21,30

Norton O. Richard, Chitwood Lawrence A. Title : Field Guide to Meteors and Meteorites
Author: Norton O. Richard, Chitwood Lawrence A.
Publisher: Springer Verlag

It is said that astronomy is one of the few remaining fields in which amateurs can make a real contribution to science, and nowhere is this more true than in the field of meteors and meteorites.Although meteors are isolated and unpredictable, it is possible to predict when meteor showers - usually associated with old comets - are due; they last a couple of days, during which many meteors can be observed in a single night. Equipment for watching, counting and even measuring meteors can range from the simplest (a chair) to sophisticated all-sky cameras.What is unique about meteors in astronomical observation is that many survive entry into the Earth's atmosphere and impact the ground - the only easily-analysed extraterrestrial material available to science.What is unique about Richard Norton's book is that it is both a field guide to observing meteors, and also a field guide to locating, preparing and analysing meteorites. In addition to giving the reader information about observing techniques for meteors, this book also provides a fully detailed account of the types of meteorites, how and where to find them, how to prepare and analyse them. It is thus the only complete book on the subject available at present.
€ 33,50

Wood Brian, Burchielli Richardo (ILT), Fox Nathan (ILT), Ford John G. (INT) Title : Dmz 4
Author: Wood Brian, Burchielli Richardo (ILT), Fox Nathan (ILT), Ford John G. (INT)
Publisher: Vertigo

Presents the adventures of aspiring photojournalist, Matty Roth, as he lands his dream job following a veteran war correspondant covering the second American civil war as they go into Manhattan, the heart of the DMZ.
€ 12,00


Buy books online Buy dvd online cd movie
Library Unilibro

Bookshop with a wide catalogue you can buy books online, buy dvd and cd, you can consult university notes, lessons, ebooks and gifts By Unilibro

Buy books online Buy Dvd online Buy Videogame online
Libri Dvd Puzzle