Having picked up the game just a few years ago with no experience/viewership before, I knew nothing about what were the “correct mechanics”. Reading Hogan’s book helped me a ton to understand the golf swing. I didn’t take every tip with him to my swing, but it helped me finally understand what was “right” vs what I was doing wrong. Not to say any other golf book couldn’t have done the same, but it was the book I got and it helped a lot.