Lou Gehrig: A Quiet Hero by Frank Graham, is an old book. I got it free when a library didn't want it any more. I've wanted to know more about Lou Gehrig for a long time. I was excited to read more and find out about his life outside of baseball. This is not the book for that.
In fact, this is not the book for anything. The information in this book can all be gotten from the movie "Pride of the Yankees". It will take less time and be more informative. At least you can enjoy the movie.