O’Reilly Media has announced the release of “Mac OS X Leopard: The Missing Manual,” by David Pogue. Pogue’s latest Missing Manual is written for advanced-beginner or intermediate Mac fans, says the bestselling author. “But if you’re a Mac first-timer, miniature sidebar articles called Up to Speed provide the introductory information you need to understand the topic at hand. If you’re a Mac veteran, on the other hand, similar shaded boxes called Power Users’ Clinic offer more technical tips, tricks, and shortcuts.” The new book is 912 pages, priced at US$34.99.