Believe What You Like - Complete text of 1973 book by the late C.H. Rolph examines the origins of Scientology, the skirmishes of Scientologists with the law in the U.K., and their aborted attempt to infiltrate the National Association for Mental Health.
Inside Scientology/Dianetics - How I Joined Dianetics/Scientology and Became Superhuman. 1995 revision of a book by the late Robert Kaufman.
The Mind Benders: Scientology - 1971 book by Cyril Vosper, a former senior official at Scientology's Saint Hill headquarters in England.