21 Lessons for the 21st Century (Hardcover)

Yuval Noah Harari born 24 February 1976) is an Israeli historian and a tenured professor in the Department of History at the Hebrew University of Jerusalem. He is the author of the international bestsellers Sapiens: A Brief History of Humankind (2014), Homo Deus: A Brief History of Tomorrow (2016), and 21 Lessons for the 21st Century (2018). His writings examine free will, consciousness, and intelligence.

Harari's early publications are concerned with what he describes as the "cognitive revolution" occurring roughly 50,000 years ago, when Homo sapiens supplanted the rival Neanderthals, developed language skills and structured societies, and ascended as apex predators, aided by the agricultural revolution and more recently accelerated by scientific methodology and rationale which have allowed humans to approach near mastery over their environment.

His recent books are more cautionary, and work through the consequences of a futuristic biotechnologicalworld where intelligent biological organisms are surpassed by their own creations; he has said "Homo sapiensas we know them will disappear in a century or so".