Stefan Krakowski (b. 1954) M.D., is a psychiatrist and author. He has a Certificate in Terrorism Studies from the University of St Andrews, and has previously worked many years for SOS International in Denmark. Today, Stefan works clinically with emergency medical care, and is Sweden’s foremost expert on involuntary celibacy. INCEL is his third book.

Miguel Guerrero is a specialist officer in the Swedish Armed Forces who has worked in psychological operations and infantry logistics in the Swedish Amphibious Corps. He is also a trained journalist and has worked as everything from local newspaper reporter to editorin chief of a lifestyle magazine before making his entry into the Armed Forces.