Early modern theatre was a visual matter, even though the authors wrote plays which were mainly meant to be read. But whether they wrote their plays to have them performed or not, authors could use comedies, tragi-comedies or tragedies to influence public opinion, to make a statement in a debate, or to convey explicit or implicit lessons that they carried out or had carried out by linguistic, rhetorical and theatrical means. How explicit they were in expressing their views depended on the characters of the authors or the circumstances in which they wrote. Questions regarding the opinion-forming and opinion-following functions of theatre, the means by which authors and theatre makers expressed their ideas, and the role of theatre and plays in public debate are discussed from various angles. Such questions refer not only to ‘literary’ plays, but also to other forms of theatrical event, such as royal entrances. Contributors include: Imre Bésanger, Hartmut Beyer, Stijn Bussels, Jean-Frédéric Chevalier, Verena Demoed, Arjan van Dixhoorn, Ron Gruijters, Jelle Koopmans, Frans-Willem Korsten, Katell Lavéant, Hubert Meeus, Marco Prandoni, and Helmar Schramm.