I have yet to sit down and read all of them, but I do plan to soon. Has anyone here read quite a few of them? What do you think about them? Do they reveal a lot of relevant or important story points? I'm excited to learn more about this incredible world we're all busy having adventures in, but I just haven't hear much discussion about what the Grimoire's disclose or what interesting content they might posses. Probably because everyone's too busy raiding, and or screaming at the Cryptarch for turning their Legendary Engram into a mote of light.