So one of the feature's in the mod I'm working on is lore books. Basically books that can be found while exploring or killing mobs that give lore about things in the world and about my mod. The issue I'm having is that I've never modded a gui before, and I have no idea where to start. I found a tutorial online, but it was very outdated (1.7.10). Where would I start with a gui like this?
Thanks for any help!