This is a list of the works of Mercer Mayer.

The following is a partial list of books that Mercer Mayer has written and/or illustrated. It also includes books and items that are related to Mercer Mayer and his creations (such as coloring books, sticker books, lacing cards and toys).

Little Critter is an anthropomorphic character created by Mercer Mayer. Although it's not specified what species the Little Critter is, he resembles a woodchuck or porcupine. Little Critter first appeared in the 1975 book Just for You. This book is sometimes mistitled Just for Yu because of the childlike mistake on the front cover.

The following books feature Little Critter.

Published in the Golden Books "Look-Look Books" series
Individual books may also be available in special editions

Continuation of the main series with HarperFestival
same dimensions, may contain some stickers, or other items.

Portrait shaped in different sizes

A numbered series. These were re-released by Scholastic and as a part of Mercer Mayer's Little Critter Book Club