Jonathan Kellerman

Jonathan Kellerman is a bestselling American psychologist and crime fiction author whose Alex Delaware series is one of the longest-running and most successful detective series in American fiction. Born in New York in 1949, he is a clinical professor of paediatrics and psychology at USC. A Cold Heart is an Alex Delaware novel — part of the series following child psychologist Delaware and his friend, LAPD detective Milo Sturgis, as they investigate complex, psychologically motivated crimes in Los Angeles. Kellerman has published over forty Alex Delaware novels alongside standalone thrillers and non-fiction. His audiobooks and books offer listeners and readers expertly crafted psychological crime fiction from a writer who brings genuine clinical insight to the detective novel.