21 Lessons for the 21st Century

Social science

First published: 2018
Print length: 372 pagesSpiegel & Grau, 2018

Description

Yuval Noah Harari organizes this five-part essay collection around the pressures shaping contemporary life and the difficulty of thinking clearly about them. He moves among liberal democracy, nationalism, immigration, terrorism, fake news, and geopolitical power, connecting large political and technological changes to choices made in ordinary life. The essays do not offer a single program for the future; instead, they translate complex global questions into accessible problems of attention, responsibility, values, and meaning. By placing social and existential concerns beside institutional ones, Harari asks how individuals can remain engaged without losing perspective amid constant uncertainty. The book serves as a broad map of interconnected challenges rather than a prediction of what will happen next.

Reading profile

About this profile

Collected’s assessment, not reader ratings. Complexity runs from 1 (least demanding) to 5 (most demanding).

Writing: How much attention the sentences and language require.
Ideas: How much interpretation or abstract reasoning the book asks of you.
Structure: How much you need to keep track of speakers, timelines and connections.
Background knowledge: Prior knowledge needed to follow the book, beyond what it explains.
Emotional intensity: Emotional pressure, from gentle (1) to intense (5). Separate from difficulty.

Writing style

Conversational · Direct · Essayistic

Pace

Moderate

Tone

Cerebral · Earnest · Philosophical · Reflective

Structure

Argumentative · Episodic

Focus

Argument · Ideas · Information

Emotional intensity

2 / 5

Reading complexity

1–5 · higher means more demanding

Writing: 3 / 5
Ideas: 4 / 5
Structure: 2 / 5
Background knowledge: 2 / 5

Themes

Knowledge and truthMigration and displacementMoralityPolitics and ideologyPowerTechnology and society

About Yuval Noah Harari

Yuval Noah Harari is an Israeli historian and popular science writer who teaches history at the Hebrew University of Jerusalem. His books combine history, biology, philosophy, politics, and technology in broad accounts of how human societies acquire coherence and power. Storytelling is a recurring concern: in Sapiens, shared narratives help explain the rise of large societies alongside changes in cognition, agriculture, empire, and science. Harari also examines free will, consciousness, intelligence, happiness, and suffering as historical and philosophical problems. His later work turns these questions toward technology. Homo Deus considers how biotechnology, artificial intelligence, algorithms, and data systems could alter authority, while Nexus places non-human intelligence and misinformation within a longer history of information networks. This scale and cross-disciplinary method distinguish his work as a popular historian.

Books by Yuval Noah Harari

Book details

For the print edition listed above.

Publisher: Spiegel & Grau
Language: English
ISBN: 9780525512172

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