Nelson was a major supplier of horoscopes and good luck charms for fortune tellers, mind readers, future predicters, etc. He also had his own radio show under his name - Robert Nelson , and a stage name Dr. Korda RaMayne. Nelson Enterprises was based in Columbus , Ohio. Nelson died in 1973.

Perhaps the most prolific American author on the subject of mentalism, he gained much of his financial success from his mailorder magic/mentalism business, supplying props and instructional booklets to magicians and mediums alike. He was also a stage performer (mentalist, of course) and performed on radio as telepathist/hypnotist Dr. Korda RaMayne.