Cocoa Programming Developer's Handbook

This book provides a great deal of information, but the delivery is directed towards an audience that has some xcode and cocoa 2.0 programming experience already. Having said that, the discussion of mac programming is very thorough with many examples given. The text is a bit dry at times with explanations of what things are rather than how to implement them into your own works. Overall, a good reference book for things you may want to explore that you haven't gotten around to yet.