Jane O'Connor is an American author best known for her children's books. She gained popularity for her series featuring the character Fancy Nancy, a young girl who loves all things fancy and teaches readers about creativity and self-expression. O'Connor's engaging storytelling and vibrant illustrations have made her books favorites among young readers and their parents. In addition to her work on Fancy Nancy, O'Connor has written numerous other children's books and has contributed to various magazines. Her writing often emphasizes themes of imagination, friendship, and the joy of learning, making her a beloved figure in children's literature.