Rosemary Guiley books in order
6 books in the catalogue, about 54 hours of reading in all; the shortest takes 6 hours and the longest 12 hours.
6 standalone books in the catalogue.
Standalone books
Harper's Encyclopedia of Mystical & Paranormal Experience 12.2 h 
The Encyclopedia of Ghosts and Spirits 8.2 h 
The Encyclopedia of Witches and Witchcraft 7.7 h 
Encyclopedia of the Strange, Mystical & Unexplained 12.2 h 
Encyclopedia of Witches, Witchcraft, and Wicca 8.0 h 
The Encyclopedia of Demons and Demonology 5.5 h