I am currently taking a classroom course to get the MCSE, and the Global Knowledge Certification Press MCSE study guides are the books provided by the school. We have two certs left to go, but my class has already convinced the administration to drop these books. Yes, they are that bad. Explanations that assume you already understand the topic, or worse yet assume the topic is self-explanatory are the norm in these books. Labs leave out critical steps that make doing any part of the exercise impossible. All in all, this entire series of MCSE books is not worth your hard earned money. If you are seriously studying for your MCSE, stay as far away from this series as you can.