Although this book is well written and informative (almost a bit TOO light-hearted in fact), it is not going to allow you to pass the A+ exams...in fact, this and a number of books combined might not be enough. The Comptia exams for A+ certification changed AGAIN after the release of this book and there are several questions on the A+ exam that you will be totally clueless about if you rely on the text and, even more so, the CD-ROM sample tests in this book. The CD tests contained therein are simplistic and do not cover hardly a thing that's contained in the actual test...in fact, the CD tests in this book don't even test you on much of anything you were to learn from the book...just 49 random questions that will have you staring at the screen during a Comptia A+ exam wondering what in the world they mean by that...very disappointing considering I once beleived this was THE book to use to pass the A+ exams.