Guess How Much I Love You is a best-selling series of picture books written by Sam McBratney and illustrated by Anita Jeram. The stories focus on the adventures of two hares in a meadow, Little Nutbrown Hare and his father, Big Nutbrown Hare. The original book in the series was first published in the mid 90s, and its success led to a number of follow-ups in the late 2000s. The original book has also been released in a number of formats, including pop-up, sweetheart edition and baby book. The stories have also been adapted for children's theatre, as well as animated storybooks.