Written by Jodie Shepherd
Illustrator John E. Barrett (photos)
Published 2008
Publisher Paradise Press
ISBN 0681991755

Moon! is an Elmo's World board book in which Elmo visits the Moon.

The book is part of a set of four Elmo's World books about space; each book features photos of Elmo set against photos of outer space provided by NASA. The other books in the set are Spaceship!, Stars! and Sun!

A squeak toy of the moon is built into the book, appearing through a hole on each page, with the reader instructed to squeak it when the word "moon" appears. A bath toy version of the book (and the other titles in the series) was released by Modern Publishing in 2012.