Description:I loved that, for once, a Rails book did not start out telling me how to install Rails. Ok, maybe they don't all do that, it just feels that way sometimes. Instead, by page 6 you are looking at charts on how Ruby class inheritance works.
I really enjoyed Chapter 1 "Foundation Techniques". It covers interesting topics such as "Metaprogramming Techniques" and "Functional Programming".
The other chapters weren't as interesting to me as the first, but all contained practical information that could be put to use by the working Rails Developer depending on the requirements of your specific project.