The best way to train your gun dog by Delmar Smith. I have read many and this is an easy read ,funny and a great training tool.

I like the German Shorthairs because they tend to work closer than the English pointers on upland game birds. They are also more versatile, in that they readily retrieve ducks from water, having web feet.
BTW, English Pointers are the way to go for hunters on horseback, who have a lot of ground to cover. You need a helicopter to keep up with them.
The Brittany is also a very good pointing breed, easily trained, very affectionate and not quite as hard-headed as the GSP.