Charles Roger Hargreaves (9 May 1935 – 11 September 1988) was an English author and illustrator of children's books, notably the Mr. Men and Little Miss series, intended for very young readers. The books' simple and silly stories, with bright-coloured, boldly drawn illustrations, have been part of popular culture for over 25 years, with sales over 100 million worldwide in 15 languages.
While he was working as the creative director at a London firm, he wrote the first Mr. Men book, Mr. Tickle. He initially had difficulty finding a publisher; but, once he did, the books became an instant success, selling over one million copies within three years. In 1975 it spawned a BBC animated television series, narrated and voiced by Arthur Lowe.