Practical Object-Oriented Design in Ruby.pdf

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Praise for
Practical Object-Oriented Design in Ruby
“This is great stuff! Your descriptions are so vibrant and vivid that I'm rediscovering the truth
buried in OO principles that are otherwise so internalized that I forget to explore them. Your
thoughts on design and knowing the future are especially eloquent.”
—Ian McFarland, President, New Context, Inc.
“As a self-taught programmer, this was an extremely helpful dive into some OOP concepts that I
could definitely stand to become better acquainted with! And, I’m not alone: there’s a sign posted
at work that reads, “WWSMD?—What Would Sandi Metz Do”?
—Jonathan Mukai, Pivotal in NYC
“Meticulously pragmatic and exquisitely articulate,
Practical Object Oriented Design in Ruby
makes otherwise elusive knowledge available to an audience which desperately needs it. The pre-
scriptions are appropriate both as rules for novices and as guidelines for experienced professionals.”
—Katrina Owen, developer, Bengler
“I do believe this will be the most important Ruby book of 2012. Not only is the book 100%
on-point, Sandi has an easy writing style with lots of great analogies that drive every point home.”
—Avdi Grimm, Author of
Exceptional Ruby and Objects on Rails
“While Ruby is an object-oriented language, little time is spent in the documentation on what
OO truly means or how it should direct the way we build programs. Here Metz brings it to the
fore, covering most of the key principles of OO development and design in an engaging, easy-to-
understand manner. This is a must for any respectable Ruby bookshelf.”
—Peter Cooper, editor,
Ruby Weekly
“So good, I couldn’t put it down! This is a must-read for anyone wanting to do object-oriented pro-
gramming in any language, not to mention it has completely changed the way I approach testing.”
—Charles Max Wood, video and audio show host, TeachMeToCode.com
“Distilling scary OO design practices with clear-cut examples and explanations makes this a book
for novices and experts alike. It is well worth the study by anyone interested in OO design being
done right and ‘light.’ I thoroughly enjoyed this book.”
—Manuel Pais, editor, InfoQ.com
“If you call yourself a Ruby programmer, you should read this book. It’s jam-packed with great nuggets
of practical advice and coding techniques that you can start applying immediately in your projects.”
—Ylan Segal, San Diego Ruby User Group
“This is the best OO book I’ve ever read. It’s short, sweet, but potent. It slowly moves from simple
techniques to more advanced, each example improving on the last. The ideas it presents are useful
not just in Ruby but in static languages like C# too. Highly recommended!”
—Kevin Berridge, software engineering manager, Pointe Blank
Solutions, and organizer, Burning River Developers Meetup
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“The book is just perfect! The elegance of Ruby shines but it also works as an A to Z of object-
oriented programming in general.”
—Emil Rondahl, C# & .NET consultant
“This is an exceptional Ruby book, in which Metz offers a practical look at writing maintainable,
clean, idiomatic code in Ruby. Absolutely fantastic, recommended for my Ruby hacker friends.”
—Zachary “Zee” Spencer, freelancer & coach
“This is the best programming book I’ve read in ages. Sandi talks about basic principles, but these
are things we’re probably still doing wrong and she shows us why and how. The book has the per-
fect mix of code, diagrams, and words. I can’t recommend it enough and if you’re serious about
being a better programmer, you’ll read it and agree.
—Derick Hitchcock, senior developer, SciMed Solutions
“I predict this will become a classic. I have an uncomfortable familiarity with programming liter-
ature, and this book is on a completely different level. I am astonished when I find a book that
offers new insights and ideas, and even more surprised when it can do so, not just once, but
throughout the pages. This book is excellently written, well-organized, with lucid explanations of
technical programming concepts.”
—Han S. Kang, software engineer and member of the LA Rubyists
“You should read this book if you write software for a living. The future developers who inherit
your code will thank you.”
—Jose Fernandez, senior software engineer at New Relic
“Metz’s take on the subject is rooted strongly in theory, but the explanation always stays grounded
in real world concerns, which helped me to internalize it. The book is clear and concise, yet
achieves a tone that is more friendly than terse.”
—Alex Strasheim, network administrator, Ensemble Travel Group
“This is an amazing book about just how to do object-oriented thinking when you’re program-
ming in Ruby. Although there are some chapters that are more Ruby-specific, this book could be a
great resource for developers in any language. All in all, I can’t recommend this book enough.”
—James Hwang, thriceprime.com
“Whether you’re just getting started in your software development career, or you’ve been coding for
years (like I have), it’s likely that you’ll learn a lot from Ms. Metz’s book. She does a fantastic job
of explaining the whys of well-designed software along with the hows.”
—Gabe Hollombe, software craftsman, avantbard.com
“In short, this is in my top five programming books I’ve ever read. I believe that in twenty years this
will be considered one of the definitive works on object-oriented programming. I plan to re-read it at
least once a year to keep my skills from falling into atrophy. If you’re a relatively new, intermediate,
or even somewhat advanced OO developer in any language, purchasing this book is the best way
I know to level up your OO design skills.”
—Brandon Hays, freelance software developer
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P
RACTICAL
O
BJECT
-O
RIENTED
D
ESIGN IN
R
UBY
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Addison-Wesley
Professional Ruby Series
Obie Fernandez, Series Editor
Visit
informit.com /ruby
for a complete list of available products.
T
he
Addison-Wesley Professional Ruby Series
provides readers
with practical, people-oriented, and in-depth information about
applying the Ruby platform to create dynamic technology solutions.
The series is based on the premise that the need for expert reference
books, written by experienced practitioners, will never be satisfied solely
by blogs and the Internet.
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