A great book covering Ruby from a Rails developer's perspective.

No one wants to wake up to an application that has been hacked. This 47-page PDF talks about common vulnerabilities found in Rails applications and how to solve them.

Bruno Miranda revised the English version of the book, fixing some typos. So I’m publishing a second edition of the book with all adjustments. This doesn’t mean that the first version contained errors, but the translation was done very quickly. Then imagine this version as a version made with more time. To download the updated version, click here.

A PDF book that explains the new features of Rails 2 and Rails 2.1 with code examples.