'Become an XCoder' free eBook that is a fairly basic introduction to Objective-C and Cocoa programming. 'From C++ to Objective-C' is also good eBook. http://pi

'Become an XCoder' free eBook that is a fairly basic introduction to Objective-C and Cocoa programming. 'From C++ to Objective-C' is also good eBook. http://pierre.chachatelier.fr/programmation/fichiers/cpp-objc-en.pdf http://pierre.chachatelier.fr/programmation/fichiers/cpp-obj... I also bought 'Cocoa Programming for Mac OS X' http://www.amazon.com/Cocoa-Programming-Mac-3rd-Edition/dp/0321503619/ref=la_B001JSJIWI_1_4?ie=UTF8&qid=1343062278&sr=1-4 http://www.amazon.com/Cocoa-Programming-Mac-3rd-Edition/dp/0... Cocoa is quite different than anything I had programmed before. Once I wrapped my head around nibs, IBOutlets and IBActions it was fairly easy. Once I got going, the apple developer docs were all I needed, but learning I found easier to do from a book than the docs.