Beginning with a brief history of the use of sound in the theatre and its development the author then describes different sound systems used in theatre, practical considerations and working in different types of theatre. He discusses the artistic input involved, working with the director and other designers and the production process - putting together cue sheets, desk plots, operating the show and rehearsals. He pays particular attention to musical theatre looking at microphones, piano techs, loudspeaker rigs and operating a musical. In addition there are chapters on sound effects, the recording studio, MIDI and finally a section explaining the physics and maths involved in sound. There is also a bibliography and online reference sources.