The Very Hungry Caterpillar is a children's book by American writer Eric Carle. It is Carle's most famous book, it has been translated into over 50 different languages and has sold 30 million copies worldwide. The book is about a caterpillar that eats food until pupating and becoming a butterfly. The book was inspired by a hole puncher. The New York Times named it as one of the "Ten Best Picture Books of the Year" in 1969. Google celebrated the book's 40th anniversary in 2009 by changing the logo on its main search page to the style used in the book.