This is the first study of Balzac's work to examine theatre in La Comédie humaine both as a theme in itself and for its influence on Balzac's techniques and modes of presentation in his novels, and to demonstrate the symbiotic influence of novel and stage on Balzac's work as a playwright and novelist. It will be of interest not only to students of Balzac, but also to students of nineteenth-century theatre and history. The introduction gives an account of Balzac's experience of the theatre; the first three chapters examine the historicity of Balzac's portrayal of the theatre world and how this portrayal serves his wider narrative purpose; the two following chapters demonstrate how and why Balzac relies on the theatre to provide a rich tissue of metaphor and bank of expressive devices with which to communicate his critique of society; finally the work shows how Balzac succeeded in bringing to the stage the same scrutiny of the capitalist ethos which underpins La Comédie humaine. An index of references to playwrights, plays, actors and stage characters in La Comédie humaine is given in an appendix.