Possible to self study AP US gov and AP Human Geo?

Hey guys I was wondering if it is possible to study for AP us gov and AP human geo for the exam in may. if so what materials shud I get to self study. I don’t want to use textbooks or anything–> I want a guide that will have everything for the exam I need to know in the most concise way possible. So one, is it possible to self study for both? two, what materials?</p>