"Jilly Coppercorn" is a children's book series written by Megan McDonald. The stories follow the adventures of a young girl named Jilly, who is imaginative and creative. She often finds herself in whimsical situations, exploring her surroundings and interacting with her friends. The series emphasizes themes of friendship, creativity, and the importance of imagination. Jilly's character encourages young readers to embrace their uniqueness and think outside the box. The books are illustrated, making them visually appealing and engaging for children, enhancing their reading experience.