Book Trailer "Des Teufels Gebetbuch" by bestselling author Markus Heitz Publisher Dromer Knaur (https://www.droemer-knaur.de) Cover Design by Anke Koopmann (https://www.designomicon.de) Cover Illustration, Motion Design, Animations and Campaign Design by Elm Haßfurth (that's me https://elmstreet.org)