Superb—the most advanced Rails book on the market.
|Ruby on Rails consultant|
In Crafting Rails 4 Applications, José Valim showed me how to make Ruby on Rails dance. I write better code and waste less time fighting the framework because of the tricks he taught me. If you make a living with Ruby on Rails (or would like to), do yourself a favor and read this book.
|Head chef, Ruby Tapas|
This is easily the best continuing-education book for Rails that I have ever read. You learn how things work internally and how you can use that to your advantage when building Rails applications.
|→||James Edward Gray|
|Developer, Gray Software Productions Inc.|
Crafting Rails 4 Applications ...