About 3600 articles cover persons, groups, venues, and institutions of the various theatre forms such as municipal theatres, independent groups, amateur and popular theatres, children's and youth theatres, puppet theatres, musical theatres, and dance theatres. Factual articles explain theatrical forms and events of Swiss theatre in the past and present. The specifics of theatre production in the four language regions are comprehensively documented for the first time and presented in their national and international context. Thus, a quadrilingual work has been created that will be of great use both to specialists and to the public interested in theater. The three-volume illustrated book edition of the TLS was published by Chronos Verlag Zurich in 2005. In 2013, the Theaterlexikon was put online (German).
