NHibernate in Action book

I am searching for a good book on NHibernate and sorted out that 'NHibernate in Action' should be good for me.

I am currently working on a projec开发者_JS百科t that uses Fluent NHibernate but still would like to dive into how-it-works basics.

Wondering if there is any newer release of NHibernate in Action book other than which explains Version 1.2.

Any ideas?

Get a copy of the NHibernate 3.0 Cookbook