Take your time but if you read, it will come...
I think we must start by saying that this is one of the better books for A+. It is almost totally exaustive and exausting to read! I bought this book alongside a class we had at GW and the professor exploted the text quite well. Especially the printing troubleshooting and the explanations of how one goes from A to B. Like other people have said, it is a long book. I would not really use it as a text for classes just because many times the info is not staring you right in the face, you have to dig for it. It is a good reference book and I use it whenever there is something unusual that happens in our network here at work. Still, it will help you pass the exam.