- eBookReal HauntingsHans Holzer
- eBookHaunted PeopleHans Holzer
- eBookPsychic PhotographyHans Holzer
- eBookFamous GhostsHans Holzer
- eBookGhostsHans Holzer
- eBookThe Ghost Hunter's Strangest CasesHans Holzer
- eBookHaunted PlacesHans Holzer
- eBookThis House Is HauntedHans Holzer
- eBookGhosts That Aren'tHans Holzer
- eBookStay-BehindsHans Holzer
- eBookPoltergeistsHans Holzer
- eBookAn Introduction to GhostsHans Holzer
- eBookHouses of HorrorHans Holzer
- eBookGhost HunterHans Holzer
- eBookGhosts I've MetHans Holzer
- eBookIn Search of GhostsHans Holzer
- eBookThe Ghost HunterHans Holzer
- eBookSerien: True Encounters with the World BeyondHans Holzer