Ebook: J2EE(TM) Connector Architecture and Enterprise Application Integration

The quality of this book varies but most of it is outright horrible. The problem is that it seems to be written not by engineers but by techincal writers. People who don't really understand what is important, what is not, and how the things are connected. There are many details but the text goes on and on and on blandly through lots of useless details while paying no attention to the important things.