Decent book to learn rails. I'm a total noob when it comes to web apps, yet this book was good enough to get me through my first site. The approach they take is to write a full website first, then go back and fill in the details. I think this was a good approach as long as you're willing to do the whole example site along with the book. However, it made it hard to use the book as a reference once you run off on your own. Many times I knew I had seen a topic in the book and couldn't find it later. I suspect this is as good a rails learning book you'll find, but if you're serious about developing in rails this book won't be quite enough. In addition to this one, you'll want to pick up a ruby reference and either a rails cookbook or a true rails reference.
Nicely explained how Rails framework works and some useful Agile terms. It's all about developing a Depot/e-Commerce store in Rails 4.*.* (the version I have read).
Excellent book, as far as programming books go. It explains a lot of principles while spoon-feeding various API consumption examples to the reader.
Since I'm not a big proponent of these sorts of books, due to the commonly found lack of true didactic value, this book was actually a very pleasant read.
I would, however, find it much more agreeable if some modern web development principles were also mentioned or at least some guidelines that would have an impact on a Rails developer (such as web accessibility).
Read this if you want to get started learning Rails and already have some programming experience. It doesn't go too far into explaining how Ruby works, so if you are not comfortable diving in all at once, be sure to learn the basics of Ruby before you pick up this book.