Lucy Cousins is the creator of many wonderful picture books for children, including Yummy: My Favourite Nursery Stories and Hooray for Fish! , as well as her bestselling books about Maisy the mouse. About I'm the Best, she says, "I had the idea for this book after winning a tennis competition. I loved telling all my friends and family about it, but then I realized that I was probably showing off, like Dog!" Lucy Cousins lives in Hampshire with her partner, four children and very fluffy dog.