This is a history of humankind, or, as Harari makes clear, of Sapiens, because the other species of genus homo were humans, too. It's a fairly in-depth look at our cultural development from the first cognitively modern home sapiens about 70,000 years ago to our essentially complete dominance of the planet. He looks at our possible interactions with other human species, including the interbreeding revealed by DNA analysis, as well as the fact that, clearly, we're the only survivors, and what that might mean. The lives of hunter-gatherers, the agricultural evolution and whether or not that was a net benefit, and the major cultural and technological changes down to the present day get intelligent and opinionated analysis.
