Katelyn Detweiler is a young adult author and literary agent. She received her BA in English Literature from Penn State University and previously worked in the marketing department at Macmillan Children’s Group before joining Jill Grinberg Literary Management as an agent. Her YA novels include the duology Immaculate and Transcendent, The Undoing of Thistle Tate, and The People We Choose, published in May 2021 by Holiday House. She also writes romantic comedies for adults as Kate Tamberelli. She lives with her husband and son in Brooklyn, New York.