Here are some of my favorite books about financial scams:
The Wizard of Lies: Bernie Madoff and the Death of Trust by Diana B. Henriques.
The Big Short: Inside the Doomsday Machine by Michael Lewis (about the 2008 stock market collapse).
The Caesar's Palace Coup: How a Billionaire Brawl Over the Famous Casino Exposed the Corruption of the Private Equity Industry by Max Frumes and Sujeet Indap. (I admit I've never finished this one; the writing is hard to read.)
The Great Beanie Baby Bubble: Mass Delusion and the Dark Side of Cute, by Zac Bissonette. I bought this book because of the subtitle and I have never regretted it. You must read it.
Catch Me If You Can by Frank Abagnale. They turned this one into a movie! The book was very different and is worth reading.
The Cult of We: WeWork, Adam Neumann, and the Great Startup Delusion, by Elliot Brown and Maureen Farrell. I haven't read this one yet, but it's on my tbr pile!
Opus: The Cult of Dark Money, Human Trafficking, and Right-Wing Conspiracy Inside the Catholic Church, by Gareth Gore. I'm reading this one right now. The author is a financial journalist who stumbled onto this story by unraveling a bank failure in Spain.
And here's a list of more non-fiction books about fraud and financial scams. The first book on this list is about Theranos and Elizabeth Holmes, which I also haven't read yet.
Enjoy!