First off, a friendly warning: Should you pick up this book and simply start reading it from Chapter 1, expecting yet another friendly “how-to†guide to OS X Leopard you will most likely be sorely disappointed. As the “official curriculum of Apple’s Mac OS X Support Essentials v10.5 training course,†this book is intended specifically to prepare the reader for the examination(s) he or she must pass in order to become an Apple Certified Support Professional.