– Eugène Ionesco, Donald M. Allen
The Bald Soprano hooked me on the entire movement of the Theatre of the Absurd, even if at the moment when I first discovered them I didn't quite know what they were conceptually about.
... and likely still don't.
The copy of the play I managed to find also came with The Chairs, The Lesson and Jack, or The Submission, but I think I still like The Bald Soprano the best out of the four.