Jonathan Kellman is an American author born in 1949 in New York City. He received his PhD in psychology from the University of Southern California in 1974. Kellman is best known for his mystery novels featuring child psychologist Alex Delaware who consults for the Los Angeles Police Department. He won the Edgar and Anthony Awards in 1986 for his first novel "When the Bough Breaks." Kellman quit his private practice in 1990 to write full-time. He has authored over 40 crime novels as well as nonfiction works and children's books and is married to fellow bestselling author Faye Kallerman.