A quick tip, it’s only the missing pages you need not every single one. So don’t be discouraged like I used to when I was younger, if you only find odd pages and not every single one numerically.
I also discovered when grabbing the last few, that most of the pages are super cheap on the auction house, especially the neutral goblin one in Booty Bay. It’s basically a big chunk of XP for like 40silver (less than the quest rewards vendor for).