We have this book in a small and large size together with anEric Carle videotape that has the story. A young caterpillar is bornand begins to eat his way through the world and through many foods that you child will be able to identify. These foods are eaten on each of the seven days of the week, an added bonus, as your child begins to learn that Sunday is a different day that Monday. The caterpillar gets very fat. He builds a cocoon and then emerges a large beautiful butterfly. My 3 year old does not tire of this story. He learns about nature, food and the days of the week in one absolutely stunningly illustrated book. You can't get much better than this for young children. If you have young children, or if you are looking for a gift for a 4 year old and younger child, this book is highly, highly recommended. Enjoy.