Kirk, I am not certain but it may, but maybe in not as much detail. I do remember they did try and create just a guide to wingshooting without the gunfit part but if this book is for beginners it might be a little too rudimentary. I like the one I referenced for you for a lot of different reasons because as I recall it talks about sight pictures and how to prepare and read shots at a range and in the field. There was a book that did have a picture of the guy taught me in it.
Gunfit part is not too important for me but it could be for others but I did enjoy reading about the process and how a gun should fit. I am about an average build guy so most guns fit me allright and/or I can figure how to adjust and account for slight variations, like Parker's as compared to modern guns.
Again there are good many books and articles on shotgun shooting but if you can learn and effectively employ the stuff in that book then you'll be way ahead of a lot shooters. I will say this, once you get yourself dialed in and programmed with process and muscle memory it will become second nature and you won't even think about shooting you will just do it and learn to focus on target and move body in concert. It is hard to explain but one of the greatest satisfactions I think in upland hunting or even at a range, is when it all comes together in an unconscious/conscious reflex and you just smoke the target cleanly in circumstances that sometimes that will just surprise you. Prime example is golf, and I am much better at shooting at the birdies than trying hit birdies, but if I don't think and just relax and swing the club, and do it right, its a similar feeling of everything coming together for that split moment.
Besides if not of that works then the video below will help.
https://www.youtube.com/watch?v=wx0zC22C4RM