Sophie Littlefield is the author of more than twenty bestselling adult and YA novels. She is the recipient of an Anthony Award and an RT Book Reviews Reviewers’ Choice Award, and she has been shortlisted for Edgar, Macavity, Barry, and Crimespree awards. The New York Times has called her “a regular writing machine.”

Lauren Gershell was born and raised on the Upper East Side of Manhattan, where she now lives with her family. She holds a B.A. and law degree from Columbia University. That's What Frenemies Are For is her first novel.