Mr. Tickle is the first book in the Mr. Men series by Roger Hargreaves, published in 1971, featuring an orange character with long, bendy arms who loves to tickle people, causing chaos and laughter. The story follows Mr. Tickle as he uses his extraordinary arms to tickle various people in town, from a policeman to a postman, before returning home to laugh about his day. The character was created after Hargreaves' son asked, "What does a tickle look like?".