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).^[1] Ellis founded and was the president and president emeritus of the New York City-based Albert Ellis Institute.^[2]

http://en.wikipedia.org/wiki/Rational_Emotive_Behavior_Therapy