Albert Ellis, Ph.D. Dies at Age 93.
Albert Ellis (September 27, 1913 – July 24, 2007) was an American psychologist who in 1955 developed Rational Emotive Behavior Therapy.
He was considered by many to be the grandfather of cognitive-behavioral therapies and, based on a 1982 professional survey of U.S. and Canadian psychologists, one of the most influential psychotherapists in history (Carl Rogers placed first in the survey; Sigmund Freud placed third). Ellis founded and was the president and president emeritus of the New York City-based Albert Ellis Institute.