Mac OS X Internals: A Systems Approach
 "Overall, I recommend this book to anyone that wants a deeper understanding of the internals of the Macintosh. If you are a developer, this is a must-have book."--Justin Williams, Founder, Maczealots.com "It's a book that every administrator and developer of almost any kind of hardware and software would want to own. It explains the how as opposed to the what of OS X more clearly, thoroughly and intelligently than any other book on the market."--Mark Sealey, Contributing Editor, ThinkSecret.com