"You Do You Boo Bunny" is a children's book about a bunny named Boo who feels like he doesn't fit in with the other bunnies. Despite trying to be like everyone else, he can't seem to be the same as his peers. However, when he hears the advice "You do you, Boo," from a wise owl, he decides to follow his heart and discovers that he's really good at painting. Boo learns that being different is actually pretty cool, and he eventually finds happiness and acceptance by doing what he loves and being true to himself. The book encourages children to be themselves and embrace their unique qualities.