Various 
Routledge Library Editions: Beckett [PDF ebook] 

This collection of five previously out-of-print titles examines Samuel Beckett’s works and their impact on the theatre, and on people who came into creative contact with his ideas. His plays are assessed, as are his works for film and television. A titan of original thinking, these books by leading Beckett scholars analyse how his creative vision was expressed and how it revolutionised not just the world of theatre but also of the wider world of the arts.