The 34 best nonfiction books that are easy to read

The Prince is required reading in political science, philosophy, history, and humanities curricula worldwide and is among the most widely assigned non-fiction texts in higher education. It appears on every syllabus for political philosophy and political theory, from introductory undergraduate courses to graduate seminars. Few texts of any era command this breadth of curricular presence.

A foundation text of Western thought, assigned across classics, history, political science and international relations, and a fixture of Great Books programs. The U.S. Naval War College has built its strategy teaching around it since the 1970s.

Published in six volumes between 1776 and 1789, it has stayed in print ever since and is a set text in courses on historiography, the Enlightenment and English prose. It appears on every major list of essential works of history in English.

Niccolò Machiavelli spent the last decade of his life under house arrest, banned from Florence's political world, and wrote the Discourses on Livy as a systematic attempt to teach what he could no longer practice. Working through Titus Livy's history of Rome book by book, Machiavelli extracts from each episode a principle of republican governance — how to found a city, sustain a republic, manage armies, treat conquered peoples, handle conspiracies, and survive the inevitable corruption of institutions. The argument runs to 142 chapters across three books, each one a small essay: he states a thesis, marshals Roman examples, and delivers a verdict. Machiavelli's Rome is not an idealized past but a working laboratory. When he recommends that a new republic must sometimes execute its founding families, or that a prince should appear virtuous rather than be virtuous, he is not being provocative — he is being precise. The Discourses is the longer and more theoretically ambitious of his two major works, and the one where his commitment to republican liberty is explicit rather than implied. Readers accustomed to political philosophy as abstract theory will find this text unusual: it thinks in cases, in generals, in the specific behavior of specific tribunes during specific sieges. The Victorian translation adds a layer of archaic syntax to the Renaissance argument. What emerges is a political science conducted before the term existed — unsentimental, empirical, and still asking questions no subsequent political thinker has fully answered.

The book that gave 'Freudian slip' to the language; among the most widely read works of psychological theory.

The Constitution is the founding document of the United States and is taught at every level of American education, in history, civics, law and political theory. It is among the most widely taught texts in the world, though this particular free edition is just one copy of it.

The Gita—a 700-verse dialogue between the warrior prince Arjuna and his charioteer Krishna, who is an avatar of God—is embedded within the Mahabharata but has been read as a standalone scripture for centuries. On the eve of a catastrophic battle, Arjuna sees his kinsmen arrayed on both sides and refuses to fight. Krishna's response unfolds the central teachings of Hindu philosophy: karma yoga (the path of selfless action), bhakti yoga (the path of devotion), and jnana yoga (the path of knowledge). Krishna argues that Arjuna must act—not because the outcome matters but because action without attachment to results is the nature of dharma. The Gita's synthesis of duty and detachment, action and renunciation, has made it the most widely read scripture in Hinduism and one of the most influential philosophical texts in world literature. Gandhi called it his 'eternal mother'; Oppenheimer quoted it upon witnessing the first nuclear explosion. Its teachings on duty, selflessness, and the nature of consciousness continue to resonate across cultures and centuries.

One of the most anthologized and assigned essays in the English language, a fixture of first-year composition, rhetoric, and journalism curricula worldwide. Its six rules and the phrase 'political language' recur in countless style guides and writing handbooks. No syllabus or Wikipedia-language data was available in our database, but its teaching presence rivals the most-taught novels.

Hiroshima is required reading in American journalism schools and widely taught in history, ethics, and literature courses across the country. NYU's journalism faculty voted it the finest piece of American journalism of the 20th century. The book has remained continuously in print since 1946 and appears on virtually every list of essential American nonfiction.

In 1776, Jean-Jacques Rousseau was sixty-four years old, exiled from France, and convinced that his former friends — Diderot, Grimm, Voltaire — had orchestrated a universal conspiracy against him. He began walking the paths around Paris with a notebook, recording his thoughts. The result is ten 'walks': part diary, part philosophical essay, part self-justification by a man who had already written the Confessions and still felt misunderstood. The Fifth Walk, written on the Île Saint-Pierre in Lake Biel, is the book's still center — Rousseau lying in a drifting boat, mind blank, aware of nothing but existing. He calls this state the only happiness fully available to him. The Seventh Walk catalogs the plants he collected with botanical precision, finding in botany a discipline free of ambition. The Fourth Walk reckons with his lifelong relationship to lying, reaching the unexpected conclusion that truth is owed only to those with a claim on us. Rousseau writes as a man who has stopped performing for an audience and is thinking on paper — the prose is direct, ruminative, sometimes self-deluding in ways he cannot see. The book breaks off mid-sentence in the Tenth Walk, which is what happened: he died. It is the founding text of the lyric essay and the template for every writer who has walked to think.