Adam Hargreaves (born 1964 in Surrey) is an English author and illustrator living in East Sussex. The son of Roger Hargreaves, he continues his father's popular Mr. Men series of children's books. Hargreaves also served as inspiration for the series. When at the age of six he asked his father "What does a tickle look like?", Roger used that question to create the first book, Mr. Tickle, which was published in 1971.