What was the name of Charles famous book?

Please provide more context! Which Charles are you referring to? There are many famous Charleses throughout history, each with their own potential books.

For example:

* Charles Dickens: His most famous books include "A Tale of Two Cities", "Oliver Twist", and "Great Expectations".

* Charles Darwin: His most famous book is "On the Origin of Species".

* Charles de Gaulle: His memoirs, "War Memoirs" and "Memoirs of Hope", are considered important historical works.

To help me answer your question, please tell me which Charles you are interested in.