# Hervey Cleckley American psychiatrist whose 1941 book *The Mask of Sanity* gave the first influential clinical portrait of [[Psychopathy]] — the outwardly charming, intelligent person who lacks an inner moral life. His criteria became the foundation later operationalized by [[Robert Hare]]'s PCL-R, making him the origin point of modern psychopathy research that the vault draws on for the psychology of power. > [!note] Stub > Minimum-viable page created to resolve inbound wikilinks. Expand with The Mask of Sanity and the lineage to Hare.