This book is for the preschool reader ages 3 to 8 years old. It follows the metamorphosis of the caterpillar to butterfly. The caterpillar talks of the changes as it is going through the changes to become a beautiful butterfly. Your preschooler will enjoy picking out the clothes and colorful outfits the caterpillar will choose for his beautiful emergence from the cocoon. The vocabulary is all listed at the back of the book so you can play games with the words he or she has learned in the story.