We try to keep our books accurate, but sometimes mistakes creep in. This page lists the errors submitted by our astute readers. If you've found a new error, please submit it.

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Key: Typo Tech. Error Suggestion Not a problem Next edition

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PDF Paper Description Found in Fixed in

#53139: "NSLog(@"userInfo %@", userInfo)" should read "NSLog(@"userInfo %@", userInfo);"--Jared Galanis