- Name: Werner Erhard
- Born: 09/05/1935 (85 years old)
- Occupation: Author, lecturer
- Website: http://www.wernererhard.net/
Werner Hans Erhard (born John Paul Rosenberg; September 5, 1935) is an American author and lecturer known for founding est, which operated from 1971 to 1984. He has written, lectured, and taught on self improvement.
Birth Name: John Paul Rosenberg
Alias: John Paul Rosenberg
Birth Place: Philadelphia, Pennsylvania, United States