[Here's to hoping I'm in the right sub for this]

Given current events in the American presidential primaries, fascism has been on my mind as of late (see: Trump, Donald). I view it as a growing concern and am interested in knowing more about its roots and how it can take hold in a relatively advanced society, as it did in Germany.

I'm essentially looking for a book that covers its rise in Italy/Germany/Spain, and maybe has something to say about how it could take hold in America. Preferably, nothing too dry or expensive.

Thanks!