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 prescriptions 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