Agile Web Development with Rails 2nd

Ruby on Rails is a framework that makes it easier to develop, deploy, and maintain web applications. During the 12 months that followed its initial release, Rails went from being an unknown toy to being a worldwide phenomenon.
It has won awards, and, more importantly, it has become the framework of choice for the implementation of a wide range of so-called Web 2.0 applications. It isn’t just trendy among hard-core hackers: many multinational companies are using Rails to create their web applications.