Charles Roger Hargreaves (9 May 1935 – 11 September 1988) was an English author and illustrator of children’s books. He created the Mr. Men series, Little Miss series and Timbuctoo series, intended for young readers. The simple and humorous stories, with bold, brightly colored illustrations, have sales of over 85 million copies worldwide in 20 languages. The first title in the series, Mr. Tickle, was published in August 1971.