Perkeo
(Germany, Essen-Kettwig: 29th May 1946 - )
Perkeo is the stage name of Reinhard Tröstler. By profession he was a teacher of mathematics, science, and art. He specializes in mentalism and has also published on math based magic. He has researched Dr. Stanley Jaks and written a book about him: Jaks.
Operates together with his wife Ruth the publishing house ZAP (Zauber-Atelier Perkeo) for magicians.