Charles Marowitz was the first American to direct at the Royal Shakespeare Company and the first American to direct at the Czech National Theatre (while collaborating with Vaclav Havel). Known as a maverick playwright, director, and critic, he nurtured numerous figures who have come to shape contemporary theatre and larger society. Without Marowitz the theories and ideas of Antonin Artaud would remain obscure. The entire trajectory and ecology of theatre and performance since the 1960s have been considerably influenced by this alone. The present-day popularity of ‘immersive theater’ was a mode of performance introduced to the British theatre by Charles Marowitz and Allan Kaprow in the famous ‘Happening’ at the 1963 Edinburgh Drama Conference. In 1968 Marowitz started the Open Space Theatre on Tottenham Court Road in collaboration with Thelma Holt. There is a gap in our collective understanding of this important figure and a gap in currently available literature about him. The Marowitz Compendium seeks to spark a revaluation. The audience for this book includes students, postgraduates, specialists and general readers interested in drama and the history of contemporary theatre.