Reading document from Apple is the best way to start.
For books, I found the following are very helpful:
1) Cocoa Programming for Mac OS X (by Aaron Hillegass) 2) Cocoa Design Patterns (by Erik M. Buck and Donald A. Yacktman)
For books, I found the following are very helpful:
1) Cocoa Programming for Mac OS X (by Aaron Hillegass) 2) Cocoa Design Patterns (by Erik M. Buck and Donald A. Yacktman)
I am looking over the Apple documents now. I haven't come across Cocoa Design Patterns until you mentioned it. It seems like a good book.
And that is very good book for this important subject.
Good luck!