Ruby on Railsa? 3 Tutorial: Learn Rails by Example by Michael Hartl has become a must read for developers learning how to build Rails apps.
aPeter Cooper, Editor of Ruby Inside.

Using Rails 3, developers can build web applications of exceptional elegance and power. Although its remarkable capabilities have made Ruby on Rails one of the worlda most popular web development frameworks, it can be challenging to learn and use. Ruby on Railsa?ï¿  3 Tutorial is the solution. Leading Rails developer Michael Hartl teaches Rails 3 by guiding you through the development of your own complete sample application using the latest techniques in Rails web development..

Drawing on his experience building RailsSpace, Insoshi, and other sophisticated Rails applications, Hartl illuminates all facets of design and implementationa including powerful new techniques that simplify and accelerate development..

Youall find integrated tutorials not only for Rails, but also for the essential Ruby, HTML, CSS, JavaScript, and SQL skills youall need when developing web applications. Hartl explains how each new technique solves a real-world problem, and he demonstrates this with bite-sized code thatas simple enough to understand, yet novel enough to be useful. Whatever your previous web development experience, this book will guide you to true Rails mastery..

This book will help you.

Install and set up your Rails development environment
Go beyond generated code to truly understand how to build Rails applications from scratch
Learn Test Driven Development (TDD) with RSpec
Effectively use the Model-View-Controller (MVC) pattern
Structure applications using the REST architecture
Build static pages and transform them into dynamic ones
Master the Ruby programming skills all Rails developers need
Define high-quality site layouts and data models
Implement registration and authentication systems, including validation and secure passwords
Update, display, and delete users
Add social features and microblogging, including an introduction to Ajax
Record version changes with Git and share code at GitHub
Simplify application deployment with Heroku.

Table of Contents
Chapter 1. From Zero to Deploy
Chapter 2. A Demo App
Chapter 3. Mostly Static Pages
Chapter 4. Rails-Flavored Ruby
Chapter 5. Filling in the Layout
Chapter 6. Modeling and Viewing Users, Part I
Chapter 7. Modeling and Viewing Users, Part II
Chapter 8 Sign Up
Chapter 9. Sign In, Sign Out
Chapter 10. Updating, Showing, and Deleting Users
Chapter 11. User Microposts
Chapter 12. Following Users
Book Details.

Paperback: 576 pages
Publisher: Addison-Wesley Professional (December 2010)
Language: English
ISBN-10: 0321743121
ISBN-13: 978-0321743121