The Compendium Maleficarum was the ultimate field guide for the beginning demonologist in the 17th century. Guazzo's Compendium was accepted by his contemporaries as the authoritative manuscript on witchcraft. Later demonologists continued to hail the conciseness and clarity with which Guazzo analyzes the practice. The Compendium not only gives an organized account of the subject matter but provides a glimpse at the Christian view of witchcraft during the early 17th century.

Though a Roman Catholic priest, Montague Summers' (1880-1948) controversial views on witchcraft and demonology differed considerably from those of his Catholic contemporaries. First published in 1926, this work is a classic study of witchcraft.

An overview of numerous historical sects, traditions, and so fourth from Crowley, the Golden Dawn Tradition, the Gnostics, Simon Magus, and others. This is an excellent book to attain the historical and real points that each of these orders possessed. This book elicits many hidden facts about these people and sects and is excellent for anyone to attain a fundamental study of the various types of occult knowledge there is today in the world.