This is a very nice book for directions to learn to knit on a Loom. Unfortunately, my looms are square! I need to go to the store, or order online, ROUND looms to be able to do the projects listed in this book. In reading the directions for these projects, they are simple and easy to understand. I believe you almost NEED this book if you do buy a loom or looms because the directions the do come with the looms themselves are not very easy to understand. This book makes projects very clear and easy to understand.