The absolute best history books? I can't say for sure, but here's some books on left-wing dictatorships: smile.amazon.com/Visions-Power-Cuba-Revolution-Envisioning-ebook/dp/B009LPY4RK/ smile.amazon.com/Stalin-Paradoxes-1878-1928-Stephen-Kotkin-ebook/dp/B00INIXPYE/ Dictatorship isn't a right-wing or left-wing only thing. Either side of the aisle can go extreme. And if you want to talk about moralism and media censorship, I'm pretty sure all that Tipper Gore mess wasn't Republicans. j/s