This book definitely covers all of the material one needs to know for the CompTIA A+ 220-1101 and 220-1102 exams. However, having just passed both tests (separately), I believe the book could have been more efficiently arranged to coincide with the objectives of each of the respective test segments. Other online training and printed material I’ve seen separately addresses each test. This book, however, is a monster to consume from beginning to end, especially considering that things that appear on the core 1 test do not generally appear on the core 2 test and vice versa. Having now taken and passed the CompTIA A+ exam, I would agree with those who recommend you take the core 1 test, pass it, then focus on taking and passing the core 2 test. Yes, it’s possible to do both in one sitting and to those who can, I salute you. However, I think there’s an easier way to do it. Unfortunately, this book does not seem to lend itself to that easier way.