Listmania!
A Ruby on Rails Bookshelf
Head First Rails: A learner's companion to Ruby on RailsHead First Rails: A learner's companion to Ruby on Rails by David Griffiths
Buy new: £21.95 / Used from: £15.00
I really like the style of the Head First series, but you might not. It's worth taking a good look at one so that you can decide.
Simply Rails 2Simply Rails 2 by Patrick Lenz
Buy new: £18.00 / Used from: £19.11
A well-regarded introduction to Rails.
Rails for .NET Developers: Pragmatic Programmers (Facets of Ruby)Rails for .NET Developers: Pragmatic Programmers (Facets of Ruby) by Jeff Cohen
Buy new: £23.74 / Used from: £13.33
This book might be more useful to current .NET developers than those above.
Agile Web Development with Rails (Pragmatic Programmers)Agile Web Development with Rails (Pragmatic Programmers) by Sam Ruby
Buy new: £22.09 / Used from: £25.05
AWDR is the defacto official book, but I didn't like the previous edition, so haven't looked at this latest one.
The Rails Way: Driving Rails into the Enterprise (Addison-Wesley Professional Ruby)The Rails Way: Driving Rails into the Enterprise (Addison-Wesley Professional Ruby) by Obie Fernandez
Buy new: £17.99 / Used from: £12.75
Often recommended as the next book that you should get after you learn the basics of Rails.
The Pragmatic ProgrammerThe Pragmatic Programmer by Andrew Hunt
Buy new: £15.91 / Used from: £15.00
Every programmer should know this classic book, but the ideas that it teaches have become absolutely pervasive in the Ruby community
The Well-Grounded Rubyist: Get the ebook FREE!The Well-Grounded Rubyist: Get the ebook FREE! by David Black
Buy new: £19.19 / Used from: £20.93
Get this book once you've learned the basics of Ruby, and want to go further with the language. It might seem a bit heavy for a beginner, because it is scrupulously thorough.
MySQL (Developer's Library)MySQL (Developer's Library) by Paul DuBois
Buy new: £15.99 / Used from: £29.94
Probably the best book around on the MySQL database server.
Pragmatic Version Control Using Git: 1 (Pragmatic Starter Kit)Pragmatic Version Control Using Git: 1 (Pragmatic Starter Kit) by Travis Swicegood
Buy new: £13.94 / Used from: £9.00
There are many very good resources online for Git, but this is the first complete book to reach print.
Mac OS X Leopard: The Missing ManualMac OS X Leopard: The Missing Manual by David Pogue
Buy new: £15.48 / Used from: £9.12
You don't have to use a Mac to develop with Rails, but if you do decide to get a Mac, this is the best book on OS X.
TextMate: Power Editing for the Mac (Pragmatic Programmers)TextMate: Power Editing for the Mac (Pragmatic Programmers) by James Gray
Buy new: £13.06 / Used from: £14.99
TextMate is a standard with Mac Rubyists. Unfortunately, most of it's power is not obvious, or clearly documented. I think that this book is essential to get the most out of what is an amazing editor.
Beginning Ubuntu LTS Server Administration : From Novice to Professional, 2nd Edition (Expert's Voice in Linux)Beginning Ubuntu LTS Server Administration : From Novice to Professional, 2nd Edition (Expert's Voice in Linux) by Sander van Vugt
Buy new: £17.21 / Used from: £5.15
Linux is the standard server operating system for Rails deployment. This is a good choice if you haven't used a UNIX-like system before.
Enterprise Recipes with Ruby and RailsEnterprise Recipes with Ruby and Rails by Maik Schmidt
Buy new: £23.79 / Used from: £15.24
Sounds interesting.
High Performance MySQL: Optimization, Backups, Replication, and MoreHigh Performance MySQL: Optimization, Backups, Replication, and More by Baron Schwartz
Buy new: £21.30 / Used from: £21.63
For when the database setup starts to really matter.