A  first-grade teacher recently asked me for some books on shapes, and other than the ancient book by Tana Hoban, I couldn’t find any.  This book fills our need perfectly as it shows 2D and 3D shapes in food.  The author did a great job in choosing foods that kids actually eat and like, and she does a great job in explaining the difference between 2D and 3D.  I am planning on getting the other books in this series.