is a children's picture book written and illustrated by Mo Willems.

It also includes a progress chart and a page of motivational stickers.

The book's instructions are presented by a group of mice that are shown toting signs and banners.

Horn Book Magazine's Kitty Flynn remarked that "the book was perfectly attuned to preschoolers' sensibilities and funny bones,"[2] while Kris Jensen of the Grand Forks Herald called it "an adorable little book, just right .

[3] Janis Campbell of the Detroit Free Press described it as "a funny and straightforward guide", having added, "[P]ublishers have recognized this milestone and you might as well have handled it with humor".