Nancy Springer is an American author of fantasy, young adult literature, mystery, and science fiction. Her novel Larque on the Wing won the Tiptree Award. She also received the Edgar Award from the Mystery Writers of America for her novels Toughing It and Looking for Jamie Bridger, in addition to receiving the Carolyn W. Field award for I am Mordred. A prolific author, she has written more than fifty books over a career that has spanned nearly four decades.