I don’t have much experience with strictly upland dogs, my Boykin is mainly a retriever that can also flush. I like Richard Wolters books a lot, I used Game Dog and Water Dog for most of my training, and have heard good things about Gun Dog as well. I plan on getting a Versatile Breed soon, so I recently picked up a copy of Bob Farris’ book and like it a lot. Also have a copy of the NAVHDA green book but have not read it yet.