I like the quality of the book's contents - great information with very nice maps, charts, illustrations, and photos. I am very happy with the Christian perspective of the book as well. One criticism I have is with the answers. All the curriculum I have that is not from Abeka has the answers within the teacher's guide. I know that Abeka has an ans
...Read MoreRead more about I like the quality of the book'swer guide of sorts in that the sections that contain the answers have the question number labeled next to it, but I don't think it should be necessary to purchase a completely different answer key. Other than that, I think it's an excellent product that I would readily recommend to others. Read LessRead less about I like the quality of the book's