I read a lot of different stuff, but Jared Diamond's work helps on early civilization, and so does Simon Baron Cohen's work on gender. Robert Sapolsky's work on

I read a lot of different stuff, but Jared Diamond's work helps on early civilization, and so does Simon Baron Cohen's work on gender. Robert Sapolsky's work on baboons and other primate research also gives us a lot of insight into what we were before we became human. If you want to learn about modern "Game"/PUA-land (which is a pre-monogamous culture-- and, thankfully, a non-reproductive one-- that has erupted in 21st-century North America) there's a lot of research on that, but it's depressing and probably not worth your time unless you're a sociopath.