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21 Lessons for the 21st Century: Yuval Noah Harari Hardcover – 30 Aug. 2018
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**THE NUMBER ONE BESTSELLER**
Sapiens showed us where we came from. Homo Deus looked to the future. 21 Lessons for the 21st Century explores the present.
How can we protect ourselves from nuclear war, ecological cataclysms and technological disruptions? What can we do about the epidemic of fake news or the threat of terrorism? What should we teach our children?
Yuval Noah Harari takes us on a thrilling journey through today’s most urgent issues. The golden thread running through his exhilarating new book is the challenge of maintaining our collective and individual focus in the face of constant and disorienting change. Are we still capable of understanding the world we have created?
‘Fascinating… compelling… [Harari] has teed up a crucial global conversation about how to take on the problems of the 21st century’ Bill Gates, New York Times
‘Truly mind-expanding… Ultra-topical’ Guardian
- Print length368 pages
- LanguageEnglish
- PublisherJonathan Cape
- Publication date30 Aug. 2018
- Dimensions14.4 x 3.4 x 22.2 cm
- ISBN-101787330672
- ISBN-13978-1787330672
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From the Publisher
Sapiens questioned the past
Homo deus imagined the future
Now Yuval Noah Harari addresses the most urgent questions facing us all.
Sapiens questioned the past
Homo deus imagined the future Now Yuval Noah Harari addresses the most urgent questions facing us all.
Product description
Review
There is surely no one alive who is better at explaining our world than Yuval Noah Harari - he is the lecturer we all wish we’d had at university. Reading this book, I must have interrupted my partner a hundred times to pass on fascinating things I’d just read. Harari has done it again -21 Lessons is, simply put, a crucial book. -- Adam Kay
Erudite, illuminating, vivid. [Harari’s] lessons suggest new ways of thinking about current problems… a splendid, sobering, stirring call to arms. ― Sunday Times
Fascinating… compelling… [Harari] has teed up a crucial global conversation about how to take on the problems of the 21st century. -- Bill Gates ― New York Times
The great thinker of our age. ― The Times
Harari… is a rare voice of calm reassurance, slicing through the chaos and uncertainty of the modern age. -- Allan Hunter ― Sunday Express
Harari thrills his readers because he addresses the biggest possible topics with confidence and brio. Compared with the subjects he tackles, anything else we might read looks piffling and parochial. ― Evening Standard
Harari’s genius at weaving together insights from different disciplines, ranging from ancient history to neuroscience to philosophy to artificial intelligence, has enabled him to respond to the clamour to understand where we have come from and where we might be heading… 21 Lessons is lit up by flashes of intellectual adventure and literary verve. ― Financial Times
Modern life can seem overwhelming. Fortunately, Yuval Noah Harari's new book, 21 Lessons for the 21st Century, is on hand to guide us through it. Poolside reading with purpose. ― Elle
[Harari’s] purpose is to reveal the hard-learned lessons we have all already encountered this century… the persuasiveness of Harari’s philosophical analysis, and the engaging quality of his writing, is hard to deny. ― Esquire
Product details
- Publisher : Jonathan Cape; 1st edition (30 Aug. 2018)
- Language : English
- Hardcover : 368 pages
- ISBN-10 : 1787330672
- ISBN-13 : 978-1787330672
- Dimensions : 14.4 x 3.4 x 22.2 cm
- Best Sellers Rank: 23,847 in Books (See Top 100 in Books)
- Customer reviews:
About the author

Prof. Yuval Noah Harari has a PhD in History from the University of Oxford and lectures at the Hebrew University of Jerusalem, specializing in world history. His books have been translated into 65 languages, with 45 million copies sold worldwide. 'Sapiens: A Brief History of Humankind' (2014) looked deep into our past, 'Homo Deus: A Brief History of Tomorrow' (2016) considered far-future scenarios, and '21 Lessons for the 21st Century' (2018) zoomed in on the biggest questions of the present moment. 'Sapiens: A Graphic History' (launched in 2020) is a radical adaptation of 'Sapiens' into a four-part graphic novel series, which Harari created and co-wrote in collaboration with comics artists David Vandermeulen (co-writer) and Daniel Casanave (illustrator). 'Unstoppable Us' (launched in 2022) is Harari's first book series for children, telling the epic true story of humans and our superpower in four volumes, and featuring illustrations by Ricard Zaplana Ruiz.
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Top reviews from United Kingdom
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It is a book of 21 essays on different subjects beginning with ‘Disillusionment’, ‘Work’, ‘Liberty’, and ‘Equality’ under Part I, entitled, ‘The Technological Challenge’. The book has a total of five Parts. The other four are: ‘The Political Challenge’, Despair and Hope’, Truth’, and ‘Resilience’.
Harari’s thoughts spring from the basic, but important question, ‘What can we say about the meaning of life today?’ In order to put the age-old question into the context of today, Harari examines the scientific and cultural changes that have transformed human societies across the world. One major change wrought by technology is the phenomenon in which we get increasingly distanced from our own bodies, and are being absorbed into smartphones and computers.
Harari shows how ‘benign patriotism’ can so easily be transformed into ultra-nationalism; form the belief that ‘My nation is unique’ (every nation is) to ‘My nation is supreme’. Once we get to that, war and strife is, frighteningly, just a step away. He devotes a chapter each to ‘immigration’ and ‘terrorism’ because these are the two bogeymen of the world – not just the Western world. Harari fears that when New York or London eventually sinks below the Atlantic Ocean, people will be blaming Bush, Blair and Obama for focussing on the wrong front.
Given the undertones of religious conflicts and differences in the wars that an American-led West had inflicted on various parts of the world, Harari had much to say in his chapters on ‘God’ and ‘Secularism’. He tries to show how irrational belief in a personal God is. ‘Science cannot explain the “Big Bang”, they exclaim, “so that must be God’s doing”…After giving the name of “God” to the unknown secrets of the cosmos, they then use this to somehow condemn bikinis and divorces’. Not to mention abortion, eating pork, and drinking beer. What does it mean ‘Not to use the name of God in vain’? Harari suggests that it should mean that ‘we should never use the name of God to justify our political interests, our economic ambitions or our personal hatred’. He exposes the problems of dogmatism, and warns against the illusion that the falsity in one’s creed or ideology will never be allowed to happen. ‘if you believe in an absolute truth revealed in a transcendent power’, he writes, ‘you cannot allow yourself to admit any error – for that would nullify your whole story. But if you believe in a quest for truth by fallible humans, admitting blunders is an inherent part of the game’.
Harari’s conclusion is a treat to read and has much to commend in the way he reconciles religious beliefs and rational thinking. Humans love story-telling, he writes, and the answers to the question, ‘what is the meaning of life?’ lie in the stories – but we do not have just one story each. And this is crucial. We not just a Muslim, or an Italian, or a capitalist. We do not have just one identity as a human. And we have many stories. We must not shut them out for the sake of one favourite.
The book begins with a lot of detail about how collection and analysis of huge amounts of data and advances in technology will allow us to even re-engineer our bodies, and in particular our brains, to allow artificial intelligence to know what we are thinking in order for it to make better decisions for us. It goes on to speculate that robots could make huge numbers of people redundant and irrelevant, forcing people to change careers at an increasingly regular rate. There is then a lot of discussion about religion, in particular the author's own Jewish religion, and how fiction has played and continues to play a crucial role in life.
I enjoyed the book but if you are looking for life lessons to follow, then it probably isn't the book for you. If you want a glimpse into the (possible) future of the human race and a summary of how we got to the point we are at now, then this is something for you. It is certainly a very well-written book.
Top reviews from other countries
It is clear to me that Harari is onto something. The strangeness that people feel when they run up against stuff they don't know, and have difficulty figuring out what to do, is going to be far beyond the cultural and linguistic barriers that recent immigrants typically experience. With English, there are thousands of words that have more than one meaning, and thousands of words that have shared meanings, depending upon context, and intent.
Harari is telling his readers to experience the strangeness that he must've felt speaking, writing, and using the English language for the first time. Most Americans are not used to learning foreign languages, because people come to America where relatively few people other than recent immigrants routinely converse and whatever other languages they happen to be trained in, or learn from infancy.
Briefly, the outline of this book is as follows.
In Part 1, Harari begins with a discussion of what he terms, "The Technological Challenge"., Followed by the head note reading, "Humankind is losing faith in the liberal story that dominated global politics in recent decades, exactly when the merger of Biotech and Infotech confronts us with the biggest challenges humankind has ever encountered."
He starts with, "Disillusionment; The End of History Has Been Postponed". Basically, Harari argues that humankind, having conquered the world, is vulnerable to technology that turns out to be an insidious threat to what it means to be human. He states that liberalism, as it used to be practiced at large in the world has reached something worse than just simply being a dead end, its consequences are becoming perverse. But conservatives should take no comfort from liberalism's embarrassment; nobody really wants to live in an authoritarian or fascistic state.
In today's world, 'work' is purposeful activity that society finds to be commercially useful, and worthy of paying money to people to perform whatever it is they do to make work productive. Harari says that work as we know it may become scarce because the skills that people acquire over a lifetime to make themselves productive enough to earn a living out of those activities, may be taken over by Artificial Intelligence, in which jobs that are not only repetitive, but includes those that require some form of judgment and discretion may become subsumed in the kind of tasks that AI can do more cost-effectively than people can. Undoubtedly, there will be numerous fixes that will be attempted to preserve jobs, but their prospects are likely to be some form of a rearguard action to delay the introduction of AI into those workspaces. Those worst off will likely be unskilled laborers were currently employed in Third World countries overseas at minimum wages. They will find that their labor is superfluous when a high tech companies in Silicon Valley, California, and elsewhere figure out how to harness 3D printers and comparable technologies to accomplish end-to-end production lines from concept to finished product for just about anything that is manufactured overseas.
So how do ordinary people earn money to meet their needs? How are they to be supported if they are not working in the private sector, for wages or salaries, and how much money will they need to survive. We are looking at Nth-degree consequences of a world in which machines and computer bots can manufacture whatever is needed to sustain human life. Programs of education and training need to be right-sized to meet the needs of the society as it exists nominally at the time of its inception, but for a generation or two down the road as school children mature into maturity, and thereafter into old age.
Political liberty and freedom are also on the auction block. What we experience today is freedom of choice, and how choices are arrived at, comes relatively recently in human history. Decision-making follows a well-trodden path where alternatives are weighed and measured, until the final choices made; what happens when humans are influenced by outside forces that they cannot fathom some of the choices they make benefit someone else, rather than themselves? What is to be said about 'free will' in the face of an AI algorithm that simulates human thinking and emotion? What can we say about 'Equality', when all meaningful data are owned by other people or corporate entities?
I'll leave the review here at this point, because having laid out some of the basic questions that Yuval Noah Harari writes about, I'll invite readers to find out for themselves by reading this highly provocative book.














