Rating: 

Non-blocking io, threads, sockets are the most important subjects this book can offer to me and the sample chapter on selectors was exactly what I wanted to read.

To the author:

"Life is a series of rude awakenings."

-R. Van Winkle

Unfortunately the sample chapter is long-winded, repetitive and more of an API-reference than a tutorial on how to use the NIO classes. This chapter is not of the caliber of "Java Servlets" by Jason Hunter. I want a book that makes learning how to use these classes less of chore, thank you.

This was a very important development in the Java world and O'Reilly's offering appears to be mediocre.