I’ve had the book The Riddle of Chung Ling Soo for probably 15 years and never read it. I finally took with me on a flight and read it on the plane!
I have a hard time believing it was a mass market book, and not just for magicians as it gets pretty nerdy in some areas. I did find it interesting that while Chung Ling Soo died during the bullet catch trick, the author mentioned that he wasn’t going to go into the theory of suicide. I think that’s an angle that needs to be explored for the sake of completeness.
It was a good, quick read and if you can find a copy of it, it’s a solid $10 buy.