If You Give a Mouse a Cookie is a beloved children's book by Laura Numeroff, illustrated by Felicia Bond, known for its circular, cause-and-effect story where one small request (a cookie) leads to a long chain of humorous demands (milk, a straw, a mirror, scissors, etc.) that eventually loop back to the beginning, making it a favorite for teaching sequencing and a classic for story time. It's the first book in the popular If You Give... series, which features other characters like a cat, dog, moose, and pig.