Sandi Metz is a programmer, teacher, author, and sometime consultant. In the past 30+ years she has written innumerable applications and creates practical solutions that produce working software that is easy to change. She has spoken about object-oriented design and refactoring at international Ruby conferences since 2009.
Praise for the first edition of Practical Object-Oriented
Design in Ruby
“Meticulously pragmatic and exquisitely articulate, Practical
Object Oriented Design in Ruby makes otherwise elusive knowledge
available to an audience which desperately needs it. The
prescriptions are appropriate both as rules for novices and as
guidelines for experienced professionals.” —Katrina Owen, Creator,
Exercism “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 programming in any language,
not to mention it has completely changed the way I approach
testing.” —Charles Max Wood, Ruby Rogues Podcast co-host and CEO of
Devchat.tv “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, DevOps and Continuous Delivery
Consultant, Independent “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 “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 perfect 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, software engineer, Cisco “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.&rdqu
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