This series of netbooks are thematically and mechanically related. The first in the series, The Cults Netbook, was developed in 1997 by Juan Camilo Rozo. That netbook was then taken by Dominique Crouzet and extensively re-written and expanded into The NetBook of Cults, also called "Version 2". That netbook received further expansion and revision by the same editor and was subsequently published as The NetBook of Cults & Priests, also called "Version 3".
While all three contain much of the same materials and are thematically similar, each revision is an overhaul of the previous revision.