Hans Holzer

Hans Holzer was an American paranormal researcher and author. He wrote well over 100 books on supernatural and occult subjects for the popular market as well as several plays, musicals, films, and documentaries, and hosted a television show, Ghost Hunter .

Holzer was born in Vienna, Austria. His interest in the supernatural was sparked at a young age by stories told to him by his uncle Henry. He went on to study archaeology and ancient history at the University of Vienna but seeing that war was imminent, his family decided it was unsafe to stay in Austria and left the country for New York City in 1938. He studied Japanese at Columbia University and, after studying comparative religion and parapsychology, claimed to have obtained a Ph.D. at a school called the London College of Applied Science. He went on to teach parapsychology at the New York Institute of Technology. Holzer wrote more than 120 books on ghosts and the afterlife.

Source: Wikipedia