Never read his books, but always love the move adaptations - always enjoyed showing spycraft as the messy job that it is.
https://www.npr.org/2020/12/13/946105256/spy-chronicler-john-le-carre-dies-at-89
https://www.npr.org/2020/12/13/946105256/spy-chronicler-john-le-carre-dies-at-89