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Praise for
Head First Design Patterns
“I received the book yesterday and started to read it on the way home... and I couldn’t stop. I took it to the
gym and I expect people saw me smiling a lot while I was exercising and reading. This is tres ‘cool’. It is
fun but they cover a lot of ground and they are right to the point. I’m really impressed.”
— Erich Gamma, IBM Distinguished Engineer,
and co-author of Design Patterns
“‘Head First Design Patterns’ manages to mix fun, belly-laughs, insight, technical depth and great practical
advice in one entertaining and thought provoking read. Whether you are new to design patterns, or have
been using them for years, you are sure to get something from visiting Objectville.”
— Richard Helm, coauthor of “Design Patterns” with rest of the
Gang of Four - Erich Gamma, Ralph Johnson and John Vlissides
“I feel like a thousand pounds of books have just been lifted off of my head.”
— Ward Cunningham, inventor of the Wiki
and founder of the Hillside Group
“This book is close to perfect, because of the way it combines expertise and readability. It speaks with
authority and it reads beautifully. It’s one of the very few software books I’ve ever read that strikes me as
indispensable. (I’d put maybe 10 books in this category, at the outside.)”
— David Gelernter, Professor of Computer Science,
Yale University and author of “Mirror Worlds” and “Machine Beauty”
“A Nose Dive into the realm of patterns, a land where complex things become simple, but where simple
things can also become complex. I can think of no better tour guides than the Freemans.”
— Miko Matsumura, Industry Analyst, The Middleware Company
Former Chief Java Evangelist, Sun Microsystems
“I laughed, I cried, it moved me.”
— Daniel Steinberg, Editor-in-Chief, java.net
“My first reaction was to roll on the floor laughing. After I picked myself up, I realized that not only is the
book technically accurate, it is the easiest to understand introduction to design patterns that I have seen.”
— Dr. Timothy A. Budd, Associate Professor of Computer Science at
Oregon State University and author of more than a dozen books,
including “C++ for Java Programmers”
“Jerry Rice runs patterns better than any receiver in the NFL, but the Freemans have out run him.
Seriously...this is one of the funniest and smartest books on software design I’ve ever read.”
— Aaron LaBerge, VP Technology, ESPN.com
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More Praise for
Head First Design Patterns
“Great code design is, first and foremost, great information design. A code designer is teaching a com-
puter how to do something, and it is no surprise that a great teacher of computers should turn out to be
a great teacher of programmers. This book’s admirable clarity, humor and substantial doses of clever
make it the sort of book that helps even non-programmers think well about problem-solving.”
— Cory Doctorow, co-editor of Boing Boing
and author of “Down and Out in the Magic Kingdom”
and “Someone Comes to Town, Someone Leaves Town”
“There’s an old saying in the computer and videogame business – well, it can’t be that old because the
discipline is not all that old – and it goes something like this: Design is Life. What’s particularly curious
about this phrase is that even today almost no one who works at the craft of creating electronic games
can agree on what it means to “design” a game. Is the designer a software engineer? An art director?
A storyteller? An architect or a builder? A pitch person or a visionary? Can an individual indeed be in
part all of these? And most importantly, who the %$!#&* cares?
It has been said that the “designed by” credit in interactive entertainment is akin to the “directed by”
credit in filmmaking, which in fact allows it to share DNA with perhaps the single most controversial,
overstated, and too often entirely lacking in humility credit grab ever propagated on commercial art.
Good company, eh? Yet if Design is Life, then perhaps it is time we spent some quality cycles thinking
about what it is.
Eric and Elisabeth Freeman have intrepidly volunteered to look behind the code curtain for us in
“Head First Design Patterns.” I’m not sure either of them cares all that much about the PlayStation
or X-Box, nor should they. Yet they do address the notion of design at a significantly honest level such
that anyone looking for ego reinforcement of his or her own brilliant auteurship is best advised not to
go digging here where truth is stunningly revealed. Sophists and circus barkers need not apply. Next
generation literati please come equipped with a pencil.”
— Ken Goldstein, Executive Vice President & Managing Director,
Disney Online
“Just the right tone for the geeked-out, casual-cool guru coder in all of us. The right reference for
practical development strategies—gets my brain going without having to slog through a bunch of tired,
stale professor-speak.”
— Travis Kalanick, Founder of Scour and Red Swoosh
Member of the MIT TR100
“This book combines good humors, great examples, and in-depth knowledge of Design Patterns in
such a way that makes learning fun. Being in the entertainment technology industry, I am intrigued
by the Hollywood Principle and the home theater Facade Pattern, to name a few. The understanding
of Design Patterns not only helps us create reusable and maintainable quality software, but also helps
sharpen our problem-solving skills across all problem domains. This book is a must read for all com-
puter professionals and students.”
— Newton Lee, Founder and Editor-in-Chief, Association for Computing
Machinery’s (ACM) Computers in Entertainment (acmcie.org)
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More Praise for
Head First Design Patterns
“If there’s one subject that needs to be taught better, needs to be more fun to learn, it’s design patterns.
Thank goodness for Head First Design Patterns.
From the awesome Head First Java folks, this book uses every conceivable trick to help you understand
and remember. Not just loads of pictures: pictures of humans, which tend to interest other humans.
Surprises everywhere. Stories, because humans love narrative. (Stories about things like pizza and
chocolate. Need we say more?) Plus, it’s darned funny.
It also covers an enormous swath of concepts and techniques, including nearly all the patterns you’ll
use most (observer, decorator, factory, singleton, command, adapter, façade, template method, iterator,
composite, state, proxy). Read it, and those won’t be ‘just words’: they’ll be memories that tickle you,
and tools you own.”
— Bill Camarda, READ ONLY
“After using Head First Java to teach our freshman how to start programming, I was eagerly waiting to
see the next book in the series. Head First Design Patterns is that book and I am delighted. I am sure
it will quickly become the standard first design patterns book to read, and is already the book I am
recommending to students.”
— Ben Bederson, Associate Professor of Computer Science & Director of the
Human-Computer Interaction Lab, University of Maryland
“Usually when reading through a book or article on design patterns I’d have to occasionally stick myself in
the eye with something just to make sure I was paying attention. Not with this book. Odd as it may sound,
this book makes learning about design patterns fun.
While other books on design patterns are saying, ‘Buehler... Buehler... Buehler...’ this book is on the float
belting out ‘Shake it up, baby!’”
— Eric Wuehler
“I literally love this book. In fact, I kissed this book in front of my wife.”
— Satish Kumar
Praise for the
Head First
approach
“Java technology is everywhere—in mobile phones, cars, cameras, printers, games, PDAs, ATMs, smart
cards, gas pumps, sports stadiums, medical devices, Web cams, servers, you name it. If you develop
software and haven’t learned Java, it’s definitely time to dive in—Head First.”
— Scott McNealy, Sun Microsystems Chairman, President and CEO
“It’s fast, irreverent, fun, and engaging. Be careful—you might actually learn something!”
— Ken Arnold, former Senior Engineer at Sun Microsystems
Co-author (with James Gosling, creator of Java),
“The Java Programming Language”
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