Ruby on Rails Tutorial (4.0 version 2nd Ed.) Learn Rails by Example Michael Hartl

The Ruby on Rails Tutorial book and screencast series teach you how to develop and deploy real, industrial-strength web applications with Ruby on Rails, the open-source web framework that powers top websites such as Twitter, Hulu, GitHub, and the Yellow Pages. The Ruby on Rails Tutorial book is available for free online and is available for purchase as an ebook (PDF, EPUB, and MOBI formats). The companion screencast series includes 15 individual lessons (including a new Rails 4.0 supplement) totaling more than 15 hours, with one lesson for each chapter of the Ruby on Rails Tutorial book. The best value is the ebook/screencast bundle, which includes the 2nd edition book, the Rails 4.0–compatible version, the 2nd edition screencast series, and the Rails 4.0 supplementary screencasts.