Rails - So Hot Right Now
Nine books worth reading if you develop applications, and you have a penchant for Ruby on Rails.
Ruby Cookbook (Cookbooks (O'Reilly))Programming Ruby: The Pragmatic Programmers' Guide, Second EditionRuby for Rails: Ruby Techniques for Rails Developers
Ruby Cookbook (Cookbooks (O'Reilly))
by Lucas Carlson
$31.49
Learn by doing -- hundreds of examples of how to solve common problems in Ruby.
Programming Ruby: The Pragmatic Programmers...
by Dave Thomas
$23.91
The "Pickaxe" -- the standard guide to learning and using Ruby effectively.
Ruby for Rails: Ruby Techniques for Rails D...
by David Black
$29.67
Like Ruby? Enjoy Rails? Lots of tips and techniques for getting the most out of Rails.
Agile Web Development with Rails: A Pragmatic Guide (Pragmatic Programmers)Head Rush Ajax (Head First)JavaScript: The Definitive Guide
Agile Web Development with Rails: A Pragmat...
by Dave Thomas

The standard guide to developing web applications with Ruby on Rails, with a focus on Agile development practices.
Head Rush Ajax (Head First)
by Brett McLaughlin

A great introduction to Ajax -- enjoyable and entertaining to read, with great examples.
JavaScript: The Definitive Guide
by David Flanagan
$31.49
It's the rhino. He loves JavaScript. He will teach you many things.
Rails Recipes (Pragmatic Programmers)Prioritizing Web UsabilityE-Commerce User Experience
Rails Recipes (Pragmatic Programmers)
by Chad Fowler
$21.75
Practical solutions for common issues -- a handy reference for any Rails developer.
Prioritizing Web Usability
by Jakob Nielsen
$28.39
Backed with substantial research and experience, this is the guide to building usable and enjoyable websites.
E-Commerce User Experience
by Jakob Nielsen
$158.00
What are web shoppers looking for, what are their habits, why do they click? This book has the answers. Highly recommended.