Inside Scientology: How I Joined Scientology and Became Superhuman is a non-fiction book that takes a critical look at the Church of Scientology. It was written by Robert Kaufman, and published in 1972 by Olympia Press. The book was the first to disclose secret Scientology materials. It was also published in 1972 in German, and was the first extensive critical report on Scientology in German. A full-text online version of the 1995 revised edition by Kaufman is freely available on the internet.