The title (SAPIENS: A BRIEF HISTORY OF HUMANKIND) does not lie, it really is a brief history of humankind. The keyword here however being brief, which means Harari will sometimes mention a major historical event or finding in passing, which may frustrate the curious mind that really wants to know more about said historical event or finding. This isn't a bad thing, this is a great way to note particular events or subjects one might like to find more in-depth writing on. The downside however is that there is a high chance many readers might assume they know everything that needs to be known about whatever is mentioned in the book, a foolish and likely popular assumption. But make no mistake, the book is very much a must-read.
It is divided into four parts, what Harari hypotheses to be the four revolutions that got us to where we are today: The Cognitive Revolution, The Agricultural Revolution, The Unification of Humankind, and the Scientific Revolution.
The first, second, and fourth are largely self-explanatory, so let's do something a little unorthodox and talk about the third.
Full review: Ganzeer.Reviews