I'm trying to learn Cocoa to write applications for Mac OS X. Everything that I have not read is difficult. It was always convenient to study tutorials on the example of "pans and spoons", so that everything was clear. For example, on an Apple website, an interesting article is Your First App. But the material in the book BecomeAnXcoder is outdated, so it is a bit hard to learn something.
Advise really clear and interesting tutorials on cocoa and objective-c?