Mr. Men is a series of children's books by English author Roger Hargreaves commencing in 1971. From 1981, an accompanying series of Little Miss books by the same author, but with female characters were published. A similar series of animal characters known as Timbuctoo started in 1978. After Hargreaves's death in 1988, his son Adam Hargreaves began writing and illustrating new Mr. Men and Little Miss stories like Mr. Good, Mr. Cool, Mr. Rude, Little Miss Scary, Little Miss Bad and Little Miss Whoops.
Each book in the original Mr. Men and Little Miss series introduced a different title character and his/her single dominant personality trait to convey a simple moral lesson. The Mr. Men and Little Miss characters frequently reappeared in other characters' books. As of 2015, a total of 85 Mr. Men and Little Miss characters had been featured in the series. The books' simple stories, with brightly coloured, boldly drawn illustrations, made them very popular, with sales of over 100 million worldwide across 28 countries.
