I bought this book a while ago, and it was sitting on the shelf. I finally got around to doing a lesson with my 6 year old son who loves math. We sat down and did 170 pages of lessons in one night. It may sound like I am pushing him, but he loves math so much that that lesson did not even phase him and we could have easily done the entire book, but it was his bedtime. That night when I put him the bed, I turned off the light, then I came back in the room because I needed something. As soon as I turned on the light again, he grabbed this book and started reading it again. I had to take it off him. Although I went over much of the book with him, he was reading it by himself as well. I plan not to sell this book on ebay, but just to leave it around for him to review or to use as reference for himself.Now that being said, the book was easily digested and very well organized. It covered every topic really well, and surely the author knows what she is talking about. Not only about math and teaching, but how to explain concepts very well. Even if you are someone who thinks you know all the tricks about math, you will still get some ideas from this book I assure you. I told my son to memorize the rhyme in the book about which months have 31 days, and he did. This is one example of the helpfulness and usefulness of this book. Don't get me wrong, even though this was easy for him, it really taught him the concepts well. They covered patterns as well. In my opinion there is NO better book for children to get started in math besides this book. It also covered fraction, shapes and even measurement. The illustrations are spot on as well, helping to understand the concepts.I plan to finish what's left of the book with my son and purchase Volume 2 (and then 3).