In 1967, John Norman (real name John Frederick Lange Jr.) released a book called Tarnsman of Gor, a book detailing life on Gor and its inhabitants. This turned into a series with 26 books in print today, called Chronicles of Gor. His books are carefully detailed that explain everything from Gorean food to Gorean rituals, and focus on adventures in Gor and the natural role of genders. Gorean philosophy believes that men have a natural drive to dominate women and women have a strong desire to submit to men and give up their rights. Women are either free or enslaved, but free women can be enslaved at any time.