Lisa Grunwald is the author of the novels Time After Time, The Irresistible Henry House, Whatever Makes You Happy, New Year's Eve, The Theory of Everything, and Summer. Along with her husband, former Reuters editor-in-chief Stephen J. Adler, she edited the bestselling anthologies The Marriage Book, Women's Letters and Letters of the Century. Grunwald is a frequent magazine contributor and runs a side hustle called ProcrastinationArts, where she sells the other things she makes with pencils and paper. She lives in New York City. Photo courtesy of author website.