"Advanced Mac OS X Programming" by Mark Dalrymple and Aaron Hillegass

I love the OS internals. Sending messages, threading, queues, etc. It opens an entirely new world for me. And I leave most of the GUI stuff to my buddy Boris, because:

• he has a better taste
• I've done so much of it in the past years that I lost all the appetite

This book to me is an equivalent of a digest of the Richard Stevens' volumes on UNIX and Network Programming. It's "Mac OS for an experienced newcomer". I read it all. It could be made better, perhaps, by getting more specific, but then it will be a custom made book for me, rather than a general introduction into programming for Mac OS. Great Book!