Benjamin Graham was a famous investor and polymath as well as author of the book “The Intelligent Investor.” That book was recently updated with commentary by Jason Zweig. Warren Buffet, who studied under Graham, writes of the book: “I read the first edition of this book early in 1950, when I was nineteen. I thought then that it was by far the best book about investing ever written. I still think it is.”
Graham was also an inventor. He received two US patents: 3122314 and 2892586.