Sixto Paz Wells (Lima, Peru, December 12, 1955) is an author and lecturer focused on the UFO phenomena, particularly alien contact, from a spiritual viewpoint. Known as the visible head of the Rahma Mission in Spain and a number of Latin American countries, stands out among the ufologists for having summoned the international press to sightings scheduled in advance in more than ten occasions. As a self proclaimed contactee, he has published 20 books in Spanish and one in English about this subject so far (July 2017). In his works about UFOlogy he promotes a systematic method of physical and mental preparation for contact, as well as protocols for documenting, validating and confirming contact experiences.