This book is a revised English edition of Sinistrari’s fascinating 17th century study on the orgasm-stimulating sex demon. The incubus and succubus are the same creature. The incubus is its male shape, copulates with women. The succubus visits men, triggering wet dreams. The intercourse with this astral visitor was called demoniality, a term no longer in use, though nowadays people are still having these mysterious incubus/succubus-“sexperiences”.The incubus and succubus are the same creature. The incubus is its male shape, seducing women. The succubus or succuba visits men, causing nightly pollutions (wet dreams). The intercourse with these astral visitors was called demoniality. Contrary to other Latin literature of the genre – like the Malleus Malificarum – Sinistrari’s study deals solely with the incubus-succubus subject. This results in a colourful collection of theories and cases regarding the half material / half astral forms of sexual activity with these demons. A special, and not by definition evil, class of demons. More akin to the fauns or satyrs of antiquity, according to some church fathers, and not impressed by holy objects, exorcisms or Jesus Christ. The present volume is a fascinating read for occultist, Wiccans, micro-historians, sexologists and those interested in folklore or parapsychology. This edition has a Post Scriptum with extra information about the incubus-succubus as a timeless phenomenon of the astral wildlife category, based on astral sightings by OOB-expert Robert Bruce. Incubi and Succubi or Demoniality is a revised edition of Sinistrari’s 17th century study on the mysterious orgasm-stimulating sex demon. A hot topic, especially in the world of witchcraft, the Inquisition and the morals of the Catholic Church.