Printing and prophecy : prognostication and media change 1450 1550 Printing and Prophecy: Prognostication and Media Change 1450 1550 examines prognostic traditions and late medieval prophetic texts in the first century of printing and their effect on the new medium of print. The many prophetic and prognostic works that followed Europes earliest known printed book not the Gutenberg Bible but the Sibyls Prophecy printed by Gutenberg two years earlier and known today only from a single page over the next century were perennial best sellers for many printers and they provide the modern observer with a unique way to study the history and inner workings of the print medium. The very popularity of these works often published as affordable booklets raised fears of social unrest. Printers therefore had to meet customer demand while at the same time channeling readers reactions along approved paths Introduction: printing and prophecy The Sibyls book Prophets in print Prophets and their readers Visions of visions: functions of the image in printed prophecy Practica teütsch Fear floods and the paradox of the practica teütsch Conclusion: the prophetic reader