My children are all home educated. My oldest is now 22 and decided she wants to study graphic arts at the local technical school. She needed the GED to get in. So we bought this book and for 2 weeks studied together for about 2 hrs. a day in the math section, for Math was always my daughter's weak area. I felt the math chapters were very well laid out and each concept presented carefully and clearly. The work even stretched my brain at times, for I haven't done high level "school math" for many years. But with the practice, my brain was refreshed and I could do it, and my "math phobic" daughter could too. In some areas, she was quicker at finding the answers than I was! I never took geometry in school, nor did my daughter study it at home, and we never knew how to find the length of the hypotenuse of a triangle ( we didn't even know what a hypotenuse was!), but I found the geometry so well explained it was easy, and I actually found that chapter quite fun! We decided to skip the Algebra chapter, for my daughter never studied algebra, and she was totally confused from almost the very first. I had taken Algebra, and I did understand the concepts, and thought the presentation was fine. Anyway, my daughter took all the practice tests in the book and she did fine on them. We didn't "study" for anything else but the math, though she did read through most of the other subject sections herself. We were so pleased and relieved to get her GED scores in the mail yesterday and see that she passed! She scored in the 80's in math and science (her weak areas) and scored in the 90's in the others. Her essay score won't come back for 2 weeks, but even without that score she already has way more points than needed to pass. In sharing all this, I just wanted to say this book is indeed very good. I was glad for the math chapters being so well done. They give solution answers too, not just the answers. Yes, I did find a few misprints of wrong answers in the math section book. So you do have to be careful about that. Still, you can't go wrong getting this book. It is huge and intimidating, but if you take it one step at a time, and even if you use it only for your weak areas, it will be worth it. I really don't think we could have prepared successfully for the math section without it. Oh, and we can tell you you can pass the math section even when you do not know Algebra.