The Reformation is a printed matter: Posting the theses started the revolution in media. That which had begun as a single public posting became a wave of leaflets, a boom of books, a flood of images. Letterpress printing enabled pamphlets and – as far as the Catholic Church was concerned – letters of indulgence to be mass produced and distributed. This new method of mass production paved the way for the Reformation’s breakthrough and vice versa these printed media became new communication standard thanks to the Reformation. Pamphlets were used for propaganda and were often distributed for free. This way of dialogue created a new kind of public audience that, for the very first time, actively participated in the reformers’ controversies. A new and immense public process of emancipation had begun with the support of the new media.