In 1953, Samuel Beckett's "Waiting for Godot" premiered at a tiny avant-garde theatre in Paris; within five years, it had been translated into more than twenty languages and seen by more than a million spectators. Its startling popularity marked the emergence of a new type of theatre whose proponents--Beckett, Ionesco, Genet, Pinter, and others--shattered dramatic conventions and paid scant attention to psychological realism, while highlighting their...