O’Reilly today announced the release of “Mac OS X: The Missing Manual, Tiger Edition” (US$29.95) by popular author and columnist, David Pogue. “After a two-month slog into the darkest underpinnings of the OS, I came up with a few discoveries–secrets, really, that I had no idea were even there,” states Pogue. “I’ve updated the book to provide a true revelation of the improved performance and new features, and an eye-opening experience of the not-so-apparent benefits.”