I finished the chapter on @property and all of the keywords that go with them. It discussed the atomic vs. non-atomic. Let's just say that whenever I use a property with an object, I will always use non-atomic. In addition, I learned about the copy and how the copywithzone is set up. It was a good refresher, and made things clearer than with the Kochan book.
The next chapter, two pages long, centered on Categories. It was also a good refresher on how a class, both system provided and developer provided, can be extended with new methods. A quick but nice chapter.
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