Historian Timothy Snider has some lectures online and wrote some great books. I’m reading his book Bloodlands now. Then there is Anne Applebaum. But this is a

Historian Timothy Snider has some lectures online and wrote some great books. I’m reading his book Bloodlands now. Then there is Anne Applebaum. But this is a wide topic, I suppose various biographies would help. Older books could help, e.g. “Prince” is old but a classic. You could also lookup reading lists in best known universities under political science and international relations.