Spellbooks of Law, Corporations, Science, Religion, History, Governments, and Education, I've read so many now! What I can't counterspell from memory I can find out how to fast now and I have begun my own private library of this varied knowledge.
Their Warlocks studied how to master deception magick. This lone Wizard they called the Fool...retreated at first knowing I was not powerful enough to unseat them in battle directly.
So I went away and took three years now studying many things and learning about how all these books tie together. And even though I am green as the day is long in this field and they, well they are veterans...I saw this work quite powerfully and flawlessly IF spelled out correctly!
Don't worry, you don't have to learn and perform any magick you just have to understand how to read their charters and then you can take advantage of the parameters of their power. Then you can play with them, just learn their boundaries and stay on the side of that border on the control portion.