I can infer from what I read on Wikipedia that thirteen of the following Mr. Men and Little Miss books were not written or illustrated by Roger Hargreaves but written by Viviane Cohen and Evelyne Lallemand and illustrated by Colette David: Mr. Brave, Mr. Grumble, Mr. Perfect, Mr. Cheerful, Little Miss Busy, Little Miss Quick, Little Miss Wise, Little Miss Tidy, Little Miss Brainy, Little Miss Stubborn, Little Miss Curious, Little Miss Fun, and Little Miss Somersault. Is this true or not?