Bear is getting ready for a long winter nap when his friends come "KNOCK KNOCK" knocking! A hilarious tale from bestselling author Tammi Sauer and bestselling illustrator Guy Francis.Knock Knock is a fresh and innovative method of humorous storytelling that uses knock-knock jokes to tell the story of Bear and his woodland friends Raccoon, Rabbit, Turtle, and others. With each new visitor, Bear grows increasingly frustrated at his lack of peace and quiet. Little does Bear know that his friends have a surprise in store for him -- a happy hibernation party!"Knock, knock!""Who's there?""Justin.""Justin who?""Justin the neighborhood and thought I'd stop by."It's sidesplitting storybook fun!