Mercer Mayer's Little Critter learns it’s important to say “I’m sorry!” in this humorous storybook! Mercer Mayer's Little Critter is having a very bad day! He used his brother's blanket as a cape, and he forgot his sister's jump rope at the park. But no matter what happens, he always remembers to apologize! This adorable picture book is an excellent way to remind little ones to say “I'm sorry!” and practice good manners!