Re:Concurrent programming, a good skill (Score 1)

I would also suggest ordering Java Concurrency in Practice, by Brian Goetz with Tim Peierls, Josh Bloch, Joseph Bowbeer, David Holmes and Doug Lea. All of the authors were members of the expert group that created java.util.concurrent.

Java Concurrency in Practice
http://www.amazon.com/gp/product/0321349601/
http://www.campusi.com/isbn_0321349601.htm/

Btw, the real cover has shiny white bullet trains on it -- much sweeter than the one currently shown (even though I do love bees).