In a nutshell this book can be broken into 3 parts:



1) About REST - 19 pages

2) Rails support for REST - 18 pages

3) Tutorials - All the other pages



I found the first 37 pages or so pretty interesting. The tutorials I'm sure have a lot of good examples, but personally I find that not the most fascinating format to read. If I have to scroll more than a few pages in a tutorial in a blog I might lose interest. That's just me.



The tutorials provide examples of how to include the ideas of REST using JavaScript, JSON, PHP, iPhone, Facebook, etc. Glance over the sections at a bookstore, if it looks like something pertinent to a project you are working on ... then buy it.



So overall, it does an OK job of presenting the material in the chosen format (tutorials). It's just not my personal favorite as far as written formats go.