Here are 100 books that 21 Lessons for the 21st Century fans have personally recommended if you like 21 Lessons for the 21st Century. Book DNA is a community of 13,000+ authors and super readers sharing their favorite books with the world.

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Book cover of Influence: The Psychology of Persuasion

Chris Simmance Author Of The Next Rung

From my list on the invisible rules that actually run your working life.

Why am I passionate about this?

I spent my first decade in business assuming the game was chess: play well, win. It took an embarrassingly long time to notice most rooms run on rules nobody wrote down. Power, persuasion, what breaks teams, who you measure yourself against. Each book here named a rule I was losing to without knowing it existed. And the deepest unwritten rule of all was the ladder itself: do the junior work, get trained, move up. Nobody questioned it because it had always held. I build AI tools for a living, and I can see it coming apart. Which is probably why I wrote a book about what replaces it.

Chris' book list on the invisible rules that actually run your working life

Chris Simmance Why Chris loves this book

I have used this book almost daily since 2016, not to manipulate anyone, but to get my perspective across so it actually lands. 

It reshaped my advisory practice. I build liking by being personable and honest, reciprocity by giving real advice that sits outside the sale, and I notice scarcity everywhere now. The deflating part is watching someone's cognitive biases hold so firm that no amount of care moves them.

I would keep it away from anyone who persuades for manipulative ends, because in the wrong hands it is a manual. In mine, it is a way of thinking more carefully about my own thinking.

By Robert B. Cialdini ,

Why should I read it?

28 authors picked Influence as one of their favorite books, and they share why you should read it.

What is this book about?

The foundational and wildly popular go-to resource for influence and persuasion-a renowned international bestseller, with over 5 million copies sold-now revised adding: new research, new insights, new examples, and online applications.

In the new edition of this highly acclaimed bestseller, Robert Cialdini-New York Times bestselling author of Pre-Suasion and the seminal expert in the fields of influence and persuasion-explains the psychology of why people say yes and how to apply these insights ethically in business and everyday settings. Using memorable stories and relatable examples, Cialdini makes this crucially important subject surprisingly easy. With Cialdini as a guide, you don't have…


If you love 21 Lessons for the 21st Century...

Book cover of The Next Rung

The Next Rung by Chris Simmance,

Every previous wave of automation had a next rung. Factory workers moved into services. Service workers moved into knowledge work. There was always somewhere to go.

This time the next rung is being automated at the same time as the current one, and the people most exposed are the ones…

Book cover of The Five Dysfunctions of a Team: A Leadership Fable

Chris Simmance Author Of The Next Rung

From my list on the invisible rules that actually run your working life.

Why am I passionate about this?

I spent my first decade in business assuming the game was chess: play well, win. It took an embarrassingly long time to notice most rooms run on rules nobody wrote down. Power, persuasion, what breaks teams, who you measure yourself against. Each book here named a rule I was losing to without knowing it existed. And the deepest unwritten rule of all was the ladder itself: do the junior work, get trained, move up. Nobody questioned it because it had always held. I build AI tools for a living, and I can see it coming apart. Which is probably why I wrote a book about what replaces it.

Chris' book list on the invisible rules that actually run your working life

Chris Simmance Why Chris loves this book

I have caused at least two of these five myself.

Early on, it was inattention to results, because my ego was convinced I ran the best digital agency going. Later, and more damaging, it was a fear of conflict: not dealing with problems until they turned personal. In any team above four or five people, these show up, and the hard part is that the founder usually cannot fix them, because they are one of them.

I have sat in a board meeting doing 85% of the work for half the value, watching one partner chase results and another dodge all accountability. It is a fable, and that is exactly why it sticks.

By Patrick M. Lencioni ,

Why should I read it?

10 authors picked The Five Dysfunctions of a Team as one of their favorite books, and they share why you should read it.

What is this book about?

In The Five Dysfunctions of a Team Patrick Lencioni once again offers a leadership fable that is as enthralling and instructive as his first two best-selling books, The Five Temptations of a CEO and The Four Obsessions of an Extraordinary Executive. This time, he turns his keen intellect and storytelling power to the fascinating, complex world of teams. Kathryn Petersen, Decision Tech's CEO, faces the ultimate leadership crisis: Uniting a team in such disarray that it threatens to bring down the entire company. Will she succeed? Will she be fired? Will the company fail? Lencioni's utterly gripping tale serves as…


Book cover of 12 Rules for Life: An Antidote to Chaos

Chris Simmance Author Of The Next Rung

From my list on the invisible rules that actually run your working life.

Why am I passionate about this?

I spent my first decade in business assuming the game was chess: play well, win. It took an embarrassingly long time to notice most rooms run on rules nobody wrote down. Power, persuasion, what breaks teams, who you measure yourself against. Each book here named a rule I was losing to without knowing it existed. And the deepest unwritten rule of all was the ladder itself: do the junior work, get trained, move up. Nobody questioned it because it had always held. I build AI tools for a living, and I can see it coming apart. Which is probably why I wrote a book about what replaces it.

Chris' book list on the invisible rules that actually run your working life

Chris Simmance Why Chris loves this book

The rule I actually applied was the one about competing with who you were rather than the people around you.

I had been watching colleagues as comparison rather than research, and it dragged me down without helping any of the businesses. Reading it felt like having a teacher in semi-real time: each rule mapped onto something I was dealing with that week. 

It falls apart in small edge cases, and people love to use edge cases to dismiss a whole book. The one I disagree with most is finding and living your personal truth, because those truths shift as your life does. I doubt there is a single one you hold forever.

By Jordan B. Peterson ,

Why should I read it?

5 authors picked 12 Rules for Life as one of their favorite books, and they share why you should read it.

What is this book about?

Penguin presents the CD edition of 12 Rules for Life written and read by Jordan B. Peterson

Jordan Peterson's work as a clinical psychologist has reshaped the modern understanding of personality, and now he has become one of the world's most popular public thinkers, with his lectures on topics ranging from the Bible to romantic relationships drawing tens of millions of viewers. In an era of polarizing politics, echo chambers and trigger warnings, his startling message about the value of personal responsibility and the dangers of ideology has resonated around the world.

In this book, he combines ancient wisdom with…


If you love Yuval Noah Harari...

Book cover of People Are People

People Are People by Jamil Hasan,

People Are People: Signals from the Human Side of Systems explores what remains constant in a world defined by accelerating technology. Drawing on personal experience, recovery, family, illness, and years of conversations with founders, entrepreneurs, and builders, Jamil Hasan examines the relationship between systems and the people who create, inherit,…

Book cover of The 48 Laws of Power

Chris Simmance Author Of The Next Rung

From my list on the invisible rules that actually run your working life.

Why am I passionate about this?

I spent my first decade in business assuming the game was chess: play well, win. It took an embarrassingly long time to notice most rooms run on rules nobody wrote down. Power, persuasion, what breaks teams, who you measure yourself against. Each book here named a rule I was losing to without knowing it existed. And the deepest unwritten rule of all was the ladder itself: do the junior work, get trained, move up. Nobody questioned it because it had always held. I build AI tools for a living, and I can see it coming apart. Which is probably why I wrote a book about what replaces it.

Chris' book list on the invisible rules that actually run your working life

Chris Simmance Why Chris loves this book

I read this in 2021, just after I launched my advisory, when I started noticing power dynamics in rooms I had never been in before and wanted to understand them.

I read Greene as describing the world, not recommending it. Most people never consciously learn any of this; they have copied behaviours that seem to work, a bit like a cargo cult.

Law ten, avoid the unhappy and the unlucky, still makes me deeply uncomfortable, and I think it only holds if you are a zealot. I recommend it not so anyone can run these plays, but so they can recognise the world around them when someone else does.

By Robert Greene ,

Why should I read it?

6 authors picked The 48 Laws of Power as one of their favorite books, and they share why you should read it.

What is this book about?

Amoral, cunning, ruthless, and instructive, this multi-million-copy New York Times bestseller is the definitive manual for anyone interested in gaining, observing, or defending against ultimate control – from the author of The Laws of Human Nature.

In the book that People magazine proclaimed “beguiling” and “fascinating,” Robert Greene and Joost Elffers have distilled three thousand years of the history of power into 48 essential laws by drawing from the philosophies of Machiavelli, Sun Tzu, and Carl Von Clausewitz and also from the lives of figures ranging from Henry Kissinger to P.T. Barnum.
 
Some laws teach the need for prudence…


Book cover of A Question of Standing: The History of the CIA

Yakov Ben-Haim Author Of The Dilemmas of Wonderland: Decisions in the Age of Innovation

From my list on making decisions when you don’t know what’s going on.

Why am I passionate about this?

I am a retired university professor. My research, in which I am still actively engaged, deals with decision-making under deep uncertainty: how to make a decision, or design a project, or plan an operation when major relevant factors are unknown or highly uncertain. I developed a decision theory called info-gap theory that grapples with this challenge, and is applied around the world in many fields, including engineering design, economics, medicine, national security, biological conservation, and more.

Yakov's book list on making decisions when you don’t know what’s going on

Yakov Ben-Haim Why Yakov loves this book

This is an interesting collection of essays on the history of the CIA.

A spy agency thrives on deceit and uncertainty, making plans and taking actions when the adversary also thrives on those same elements.

Arranged in chronological order, the essays cover nearly 20 different incidents, describing the challenges, uncertainties, goals, and decisions made by both high-level political decision-makers and practitioners in the field.

Topics covered include early stages in the development of the CIA (founded in 1947), including covert action against the Soviet Union in the 1950s, the Bay of Pigs (1961), the Iran-Contra affair (mid-1980s), up to more recent events with bin Laden, fake news, and more.

By Rhodri Jeffreys-Jones ,

Why should I read it?

2 authors picked A Question of Standing as one of their favorite books, and they share why you should read it.

What is this book about?

A Question of Standing deals with recognizable events that have shaped the history of the first 75 years of the CIA. Unsparing in its accounts of dirty tricks and their consequences, it values the agency's intelligence and analysis work to offer balanced judgements that avoid both celebration and condemnation of the CIA.

The mission of the CIA, derived from U-1 in World War I more than from World War II's OSS, has always been intelligence. Seventy-five years ago, in the year of its creation, the National Security Act gave the agency, uniquely in world history up to that point, a…


Book cover of Studies in Generalship: Lessons from the Chiefs of Staff of the Israel Defense Forces

Yakov Ben-Haim Author Of The Dilemmas of Wonderland: Decisions in the Age of Innovation

From my list on making decisions when you don’t know what’s going on.

Why am I passionate about this?

I am a retired university professor. My research, in which I am still actively engaged, deals with decision-making under deep uncertainty: how to make a decision, or design a project, or plan an operation when major relevant factors are unknown or highly uncertain. I developed a decision theory called info-gap theory that grapples with this challenge, and is applied around the world in many fields, including engineering design, economics, medicine, national security, biological conservation, and more.

Yakov's book list on making decisions when you don’t know what’s going on

Yakov Ben-Haim Why Yakov loves this book

War is the realm of uncertainty. Clausewitz sums this up by referring to the "fog of war".

Military commanders must confront this uncertainty, making far-reaching decisions when the fog of war obscures their understanding of the situation and the implications of their actions.

The book contains concise professional and historical biographies of 6 generals of the IDF, serving from early 1973 (prior to the Yom Kippur War) to 2013. The studies focus on decisions made – or not made – by these generals, the uncertainties that they confronted, and the military, political and social constraints they faced.

An interesting aspect is the personal and individualistic nature of the decision-making process. While military activity has a long history and much theory, it is more of an art than a science. The art of war, and of preventing war, is very personal, and it differs from one general to another. Some generals…

By Meir Finkel ,

Why should I read it?

1 author picked Studies in Generalship as one of their favorite books, and they share why you should read it.

What is this book about?

The commander, or chief of staff, of the Israel Defense Forces (IDF) is a prominent public figure in Israel. His decisions, advice, and persona exert direct influence on force design and military strategy, and indirectly impact social, economic, and foreign affairs. This first-ever in-depth comparative study on the role and performance of the IDF chiefs of staff throughout modern Israel's history offers lessons for practitioners and students of strategy, military history, and leadership everywhere.


If you love 21 Lessons for the 21st Century...

Book cover of The Silken Thread: Five Insects and Their Impacts on Human History

The Silken Thread by Robert N. Wiedenmann,

This is not an insect book--it is a history book, but one that tells the history you didn't learn in school, or it tells the history in a way you never imagined. Five insects had a significant impact on human history. Silkworm moth, Oriental rat flea, human body louse, yellow…

Book cover of Hannibal: Rome's Greatest Enemy

Yakov Ben-Haim Author Of The Dilemmas of Wonderland: Decisions in the Age of Innovation

From my list on making decisions when you don’t know what’s going on.

Why am I passionate about this?

I am a retired university professor. My research, in which I am still actively engaged, deals with decision-making under deep uncertainty: how to make a decision, or design a project, or plan an operation when major relevant factors are unknown or highly uncertain. I developed a decision theory called info-gap theory that grapples with this challenge, and is applied around the world in many fields, including engineering design, economics, medicine, national security, biological conservation, and more.

Yakov's book list on making decisions when you don’t know what’s going on

Yakov Ben-Haim Why Yakov loves this book

This is a very readable account of Hannibal and his exploits, though it’s perhaps a somewhat idealized, romantic, and heroic portrayal of the man. Nonetheless it’s a great read.

The book follows Hannibal’s many military exploits in Carthage, Sicily, Spain, and many more, up to Cannae, Rome, and his ultimate fall from power and exile.

One sees the continual tension between three factors: Hannibal’s military genius in making military decisions despite deep uncertainty about his own capabilities and about the adversary's intentions, the military genius of his opponents, and the ruthless hand of uncertainty in human history. Hannibal’s life illustrates all three factors.

By Philip Freeman ,

Why should I read it?

1 author picked Hannibal as one of their favorite books, and they share why you should read it.

What is this book about?

Telling the story of a man who stood against the overwhelming power of the mighty Roman empire, Hannibal is the biography of a man who, against all odds, dared to change the course of history.

Over two thousand years ago one of the greatest military leaders in history almost destroyed Rome. Hannibal, a daring African general from the city of Carthage, led an army of warriors and battle elephants over the snowy Alps to invade the very heart of Rome's growing empire. But what kind of person would dare to face the most relentless imperial power of the ancient world?…


Book cover of The Pursuit of Power: Technology, Armed Force, and Society since A.D. 1000

Yakov Ben-Haim Author Of The Dilemmas of Wonderland: Decisions in the Age of Innovation

From my list on making decisions when you don’t know what’s going on.

Why am I passionate about this?

I am a retired university professor. My research, in which I am still actively engaged, deals with decision-making under deep uncertainty: how to make a decision, or design a project, or plan an operation when major relevant factors are unknown or highly uncertain. I developed a decision theory called info-gap theory that grapples with this challenge, and is applied around the world in many fields, including engineering design, economics, medicine, national security, biological conservation, and more.

Yakov's book list on making decisions when you don’t know what’s going on

Yakov Ben-Haim Why Yakov loves this book

The author presents a reasoned rational explanation of historical events: Agents act rationally from self-interest. History makes sense.

As I read the book, I was challenged to ask: how rational is human behavior? What does rationality mean in a world that we hardly understand because it is fraught with uncertainty?

Uncertainty and surprise are important in history: What will be the next revolutionary invention? Who will be the next charismatic leader? What new ideology will sweep away conventions? Does history really make sense? Can we really make rational decisions when we face deep uncertainty about the world?

By William H. McNeill ,

Why should I read it?

1 author picked The Pursuit of Power as one of their favorite books, and they share why you should read it.

What is this book about?

In this magnificent synthesis of military, technological, and social history, William H. McNeill explores a whole millennium of human upheaval and traces the path by which we have arrived at the frightening dilemmas that now confront us. McNeill moves with equal mastery from the crossbow-banned by the Church in 1139 as too lethal for Christians to use against one another-to the nuclear missile, from the sociological consequences of drill in the seventeenth century to the emergence of the military-industrial complex in the twentieth. His central argument is that a commercial transformation of world society in the eleventh century caused military…


Book cover of The Shortcut: Why Intelligent Machines Do Not Think Like Us

Simon J.D. Prince Author Of Understanding Deep Learning

From my list on machine learning and deep neural networks.

Why am I passionate about this?

I started my career in neuroscience. I wanted to understand brains. That is still proving difficult, and somewhere along the way, I realized my real motivation was to build things, and I wound up working in AI. I love the elegance of mathematical models of the world. Even the simplest machine learning model has complex implications, and exploring them is a joy.

Simon's book list on machine learning and deep neural networks

Simon J.D. Prince Why Simon loves this book

This is a popular science book, so a little different from the others on this list. It is a beautifully written book that is accessible to people who don’t know much about AI but is simultaneously thought-provoking for experts.

It contains probably the best discussion of "intelligence" that I've read, interesting insights into how Google and other tech giants came to develop their machine learning strategy, and a fascinating chapter that views recommendation engines and their users as parts of a single intelligent organism. It's concise and easy to read.

I've read many popular AI books, which are highly variable in quality, and this criminally underappreciated work is the best by miles. 

By Nello Cristianini ,

Why should I read it?

1 author picked The Shortcut as one of their favorite books, and they share why you should read it.

What is this book about?

- The author is one of the most influential AI reseachers of recent decades.

- Written in an accessible language, the book provides a probing account of AI today and proposes a new narrative to connect and make sense of events that happened in the recent tumultuous past and enable us to think soberly about the road ahead.

- The book is divided into ten carefully crafted and easily-digestible chapters, each grapples with an important question for AI, ranging from the scientific concepts that underpin the technology to wider implications for society, using real examples wherever possible.


If you love Yuval Noah Harari...

Book cover of The Animal In The Mirror

The Animal In The Mirror by Arnie Benn,

The Animal in the Mirror is a wake-up call to your higher self. Why do we keep reacting, fearing, and repeating the same patterns—no matter how much we know better? Because beneath our thoughts and emotions still lives the animal within: the ancient survival instinct that once kept us alive…

Book cover of Periodization and Sovereignty: How Ideas of Feudalism and Secularization Govern the Politics of Time

K. Patrick Fazioli Author Of The Mirror of the Medieval: An Anthropology of the Western Historical Imagination

From my list on the use and abuse of the medieval past.

Why am I passionate about this?

I’m not ashamed to admit that my childhood fascination with the distant past was sparked by hours of leafing through The Kingfisher Illustrated History of the World and countless viewings of the “Indiana Jones” movies. Today, I am an Associate Professor in the Department of Humanities at Mercy College and an archaeologist specializing in the eastern Alpine region during Late Antiquity and the Early Middle Ages. The author of three books and numerous scholarly articles, my research interests include ceramic technology, social identity, and the appropriation of the medieval past by modern ideologies.    

K.'s book list on the use and abuse of the medieval past

K. Patrick Fazioli Why K. loves this book

When I first read this book as a graduate student, Kathleen Davis’s ability to draw unexpected connections—between political power and temporality, feudalism and imperialism, medieval and postcolonial studies—melted my brain (in a good way). It’s not easy to do justice to her complex argument in a few sentences, but basically she shows how early modern jurists deliberately relegated certain ideas (servility, absolutism, religiosity) both to Europe’s medieval past and the present of the nonwestern world in order to justify imperial expansion, colonial domination, and even chattel slavery. A dense critique of both medieval historiography and postcolonial theory, Periodization and Sovereignty isn’t a breezy read but it’s well worth the effort.     

By Kathleen Davis ,

Why should I read it?

1 author picked Periodization and Sovereignty as one of their favorite books, and they share why you should read it.

What is this book about?

Despite all recent challenges to stage-oriented histories, the idea of a division between a "medieval" and a "modern" period has survived, even flourished, in academia. Periodization and Sovereignty demonstrates that this survival is no innocent affair. By examining periodization together with the two controversial categories of feudalism and secularization, Kathleen Davis exposes the relationship between the constitution of "the Middle Ages" and the history of sovereignty, slavery, and colonialism.
This book's groundbreaking investigation of feudal historiography finds that the historical formation of "feudalism" mediated the theorization of sovereignty and a social contract, even as it provided a rationale for colonialism…


Book cover of Influence: The Psychology of Persuasion
Book cover of The Five Dysfunctions of a Team: A Leadership Fable
Book cover of 12 Rules for Life: An Antidote to Chaos

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