Preface to the Second Edition
I once studied with a wise mathematician named Soo Bong Chae. Dr. Chae had written a few really good books, and one day he told me his secret: “After I write a book, I put it away for two years. After avoiding the book for two years, I read it and rewrite the parts that need work. Then I publish it.” The idea was a good one: By ignoring the book for two years, he could revise it with fresh eyes.
But that's not what happened in my case.
It has, indeed, been two years since I wrote the first edition of Cocoa® Programming for Mac® OS X. In that time, however, I have taught 20 classes using the book as a text. Overall, the first edition was a good book, but it was far from perfect. Where the book was weak, I have suffered. ...
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