For the Gann enthusiasts, this book was certainly published by him. Mr Gann talks of angles, selection charts and customary sense trading rules. The rules that Gann built on above an extended trading heritage and however so pretty suitable in today's markets. Mr Gann leads you in with the basics https://charliezemvk.blogolenta.com/25113906/the-definitive-guide-to-gann-square-of-9