RJS is one of the hottest topics in the rails and web development world. It fuses the worlds of server sided development and client sided code into a familiar and streamlined unit. All recently released rails applications I can think of make heavy use of this technology.

One of the main things that held it back so far was the lack of documentation. Like many abstract concepts its hard to explain a elegant solution like RJS if you have never felt the actual pains and experienced the problems which it solves.

Cody Fauser’s newly released book RJS Templates for Rails addresses this issue masterfully and explains everything with clarity and context; something that makes a book of this type stand out from the crowd.