The author advocates the inclusion of Kohut's theoretical formulations on the psychology of the self into psychohistorical studies. Kohut's own work has provided psychobiographical vignettes of Hitler and Churchill which emphasize the interplay between the grandiose self, the ego, and the superego in determining adult personality. Kohut sees Hitler as having had a "healed-over psychosis" in which he retained the ability to test reality but in which his reasoning capacity entirely served his rigid narcissistic personality structure. Kohut has also commented on Hitler's ability to subordinate others to his grandiose fantasies of magical-sadistic control over the whole world. The author of this review essay feels that psychohistorians are faced with the urgent need to apply Kohut's psychology of the self to their work.