I ordered it. As many times as I've played the game it doesn't really matter. I never got the legendary edition. What I love about the books is that they have additional information and lore that is not in the game when reading about locations in the maps section. It's like picking up a nice touring guide you can read along with as you explore. I love maps and descriptions of places I'm visiting and that's all I really use these books for.
(also nice to scan maps so you can mark off places you've been and I enjoy collecting all the books in the game.. so that's nice to scan and mark off as well.)