Who wrote the Mr. and Little Miss series?

Answer 1

I think the link below is what you're after:

"Mr. Men is a series of 46 children's books by Roger Hargreaves started in 1971. Little Miss was an accompanying series of 33 books with female characters that started in 1981. After Hargreaves' death in 1988, his son, Adam, began writing and illustrating new stories involving the Mr. Men and Little Miss characters, including the creation of six new characters."

Answer 2

Roger Hargreaves.