Bertolt Brecht was a prominent German theatre practitioner, playwright, and poet who rose to prominence during the Weimar Republic. He achieved his initial successes as a playwright in Munich before relocating to Berlin in 1924. It was during his time in Berlin that he co-wrote The Threepenny Opera with Elisabeth Hauptmann and Kurt Weill, while also establishing a long-term collaboration with composer Hanns Eisler.
Brecht is recognized as a leading theoretician of epic theatre and the Verfremdungseffekt. Deeply immersed in Marxist thought, he authored didactic Lehrstücke and significantly influenced modern theatrical theory through his exploration of these concepts.