Hey guys, I need some help! My dad loves to read (that's where I get it from!) and for his 60th birthday, my mom and I decided to get him an e-reader, and I ordered a custom cover for it with deer and camo print lol. I am giving it to him this weekend but I need to load it with books! He is not very technologically savvy, so I want to give him enough to keep him busy for a while.
His interests are hunting/outdoorsy stuff, history (usually Canadian history), and hockey

I have bought him lots of books in the past based on true stories of survival and he likes those ones. He also enjoyed a book I bought him by Don Cherry, and he also really liked S*** My Dad Says lol.
It is much easier for me to go to a book store and browse and find books he would like, but harder for me to browse online and find them, so I'm hoping you guys can give me some direction!