Katherine Hannigan (born 1962) is an American children's author known for her warm, imaginative stories that explore themes of growth, friendship, and family. Her most famous works include 'Ida B' and 'True (Sort Of)', which have won several literary awards and been translated into multiple languages. With a background in education, Hannigan's writing style is simple yet poetic, resonating with young readers worldwide. She continues to write and inspire children to face life's challenges with courage.