David R. Reuben (born November 29, 1933) is a psychiatrist,[1] and author. He is most famous for his book Everything You Always Wanted to Know About Sex* (*But Were Afraid to Ask).
The book is written to sell, sell. It amazes me how an M.D. can know "every thing" about medicine ( he's a psychiatrist), "everything" about sex (Remember Everything You Always Wanted to Know About Sex But Were Afraid to Ask?)