Most of their language books are pretty good -- Programming Erlang and Programming Clojure are both worth reading, if you're interested in either language.

It's disappointing that they don't discount The Pragmatic Programmer, as that's a book I wholeheartedly recommend to every working developer. I think that's still owned by Addison Wesley.

Another vote for programming clojure if you are interested in it. I also have Prag Thinking and Learning and the book on web GIS but have not had time to read those (was from their black friday deal last year).

The RSpec book. It's not done, but it's pretty good. Cucumber/RSpec helps you think.