We have all seen caterpillars, and we know they turn into beautiful butterflies. But, how do they do it? Here is a charming book written by Eric Carle about a very hungry caterpillar that keeps eating a lot. This board book is well-illustrated to show kids what exactly the hungry caterpillar ate. The caterpillar is hungry through the story until it makes a cocoon and goes to sleep. This book is a classic among picture books, and makes for a great gift for children.