Batman: The Killing Joke

One of the most iconic and controversial Batman graphic novels, The Killing Joke tells the origin story of the Joker, providing a dark and twisted backstory to the infamous villain. The comic explores themes of madness, crime, and the fragile nature of sanity, contrasting the Joker’s descent into madness with Batman’s steadfastness. The book is known for its mature themes and controversial depictions of violence. It had a significant influence on the portrayal of the Joker in various media and is considered a must-read for Batman fans.