Jonathan Kellerman is an American author and psychologist, best known for his psychological thrillers. He was born on August 9, 1949, in New York City and later moved to California. Kellerman's novels often feature the character Alex Delaware, a child psychologist who solves crimes, blending his expertise in psychology with gripping narratives. In addition to his fiction work, Kellerman has written non-fiction books on psychology and has contributed to various publications. He has received several awards for his writing, including the Edgar Award, and has established himself as a prominent figure in the genre of crime fiction.