In 1983, Daniel Whiteside joined Gordon Stokes to co-create Three In One Concepts into its present form - a multidimensional work, focused on the integration of Body, Mind and Spirit.

From the age of 8, Daniel was exposed to Personology through his parents, Robert and Elizabeth Whiteside, who founded the first college of Personology in the United States. Daniel's incredible knowledge of culture - literature, archeology, history, art and music - blended with his understanding of human tendencies, characterized his writings for Three In One Concepts and his essence could be felt in the texts of the advanced programs that were authored by him. They include: Relationships In Jeopardy; Childhood, Sexuality and 'Aging'; Adolescence, Maturity and 'Love'; Greed, Guilt and 'God'; Oneness; Sexuality; and The Child as the Parent.

Prior to his involvement with Three In One Concepts, Daniel co-authored the novel "Fire Goddess." The best selling "How to Win Over Yourself and Other People," an introduction to Personology, was co-authored with his father, Robert Whiteside. A born actor, Daniel was a guest on numerous radio and television programs and appeared in several award-winning educational film/video.

While from 2009 on, Daniel chose to pursue his independent projects, he will always be appreciated for the brilliance of his contribution as co-creator of Three In One Concepts.