David John Oates is an Australian researcher, author and the founder of Reverse Speech, a phenomenon he discovered in 1983 that has become the focus of more than forty years of groundbreaking research into language and possibly the unconscious mind. Some people claim Reverse Speech can reveal spirit communication, ghost voices, or even demonic influences. Ghost Hunters work with his theories on a daily basis.
He is the author of over 30 books covering a wide range of subjects, from Reverse Speech, psychology and spirituality to science fiction. Based in Adelaide, South Australia, David continues to work with clients from around the world through his active Reverse Speech practice, helping people gain deeper insight into their unconscious minds while continuing to research one of the most intriguing discoveries in human communication.