Daniel J. Levinson, a psychologist, was one of the founders of the field of positive adult development. Levinson's two most prominent publications were his series of books entitled, The Seasons of a Man's Life and The Seasons of a Woman's Life. Although controversy surrounds his publications, both books remain promising and highly influential within the field of psychology. Levinson died in 1994 shortly after finishing The Seasons of a Woman's Life which was then published in 1996.
