This was an intense deep dive into the maddening mind of the real-life Jokers in the world. I have read several books that talk about the mental conditions that brought forth Batman but never journeyed down the mind of the joker or those that obsessed over the clown trickster.
This was a magnificent and somewhat eerie look into the abyss. If you are a potential writer, I recommend picking up this book. It gives the perfect representation of How to tell a compelling story. I have to say, page 22 is the perfect homage to the Killing Joke and this page actually ends with a laugh.