A totally new concept of the callback was introduced yesterday. Kochan did not even mention the word "callback" once. It seems like it could be an important thing to know as I would to be able to use times and make calls to url connections asynchronously.
I am sometimes befuddled by Hillegass's style. He tends to jump from one topic to another. Kochan was much more stepwise and for this, I have to say the Kochan material is much better. Certainly more challenging. However, something tells me that Hillegass wrote this book to be a small introduction for greater things in the iOS guide that I will be reading sometime in the future.
In any event, I did not get too far in the chapter on callbacks as I want to digest this material a little. Today I will finish it and try to get to the chapter on protocols, # 25.
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