Joke Book is a character who appears in the two titular Annoying Orange episodes "JOKE BOOK!" and "Joke Book 2: Jokes from Fans!". He first meets Orange in "JOKE BOOK!" after the camera pans to the counter, and tells a joke about Orange being round. The both of them then tell each other multiple jokes from their joke books, until Joke Book warns Orange about a bison. He later appears again in "Joke Book 2: Jokes from Fans!", once again telling each other jokes, but this time jokes from the fans. However, he is never seen again after this, as he gets exploded by TNT after Orange warns him of it.