 He also serves on the editorial board of "Personality and Individual Differences", which was founded by Hans Eysenck (Editor-in-Chief).Zuckerman retired in September 2002, aged 74 years and resided in Philadelphia where he wrote journal articles and invited book chapters for international handbooks until shortly before his death.as well as having revised his 1991 book the "Psychobiology of Personality", and writing new books on sensation seeking and personality science, respectively.