Western thinking about the Middle and Far East has been distorted by stereotype and inaccuracy. This argument lies at the center of Palestinian-American literary theorist Edward Said's groundbreaking book, Orientalism. Originally published in 1978, it cemented Said's reputation as the father of postcolonial studies.

Frantz Fanon's Black Skin, White Masks offers a radical analysis of the psychological effects of colonization on the colonized. Born in 1925 on the island of Martinique - at the time a French colony - Fanon witnessed firsthand the abuses of white colonizers and the system's effects on his country. His revulsion was only confirmed later in life when he worked as a psychiatrist in Algeria, another French colony. Fanon's work played a pivotal role in the civil rights movements of the 1960s and was later taken up by scholars of postcolonialist studies.

Published in 1961, the year of Frantz Fanon's death, The Wretched of the Earth is both a powerful analysis of the psychological effects of colonization and a rallying cry for violent uprising and independence. The book rejects colonial assumptions that the people of colonized countries need to be guided by their European colonizers because they are somehow less evolved or civilized. Fanon argues that violence is justified to purge colonialism not just from the countries themselves, but from the very souls of their inhabitants.

De Beauvoir's book charted the oppression of "the second sex" in terms never before seen in the academic world. Her most startling theory became a rallying cry for the feminist movement: "One is not born, but rather becomes, a woman." She argued that gender identity was shaped by upbringing in a world ruled by men. A leading light in the existentialist movement, de Beauvoir applied the radical philosophy of personal choice and freedom to argue that women were subjugated in every area of life.

Though written around 1513, more than 500 years ago, Italian diplomat Niccolò Machiavelli's The Prince is still both widely listened to and very influential. Listeners turn to it for its direct advice on the question of how to attain - and retain - power. Machiavelli's answer, in brief: Use any means necessary to make sure the state survives.

More than two centuries after its initial publication in 1781, Immanuel Kant's Critique of Pure Reason remains perhaps the most influential text in modern philosophy. Kant himself claimed his work as a revolutionary document and insisted that it changed the discipline of philosophy as thoroughly as Copernicus had changed astronomy 300 years earlier, when he said the Earth revolved around the sun and not the other way round.

Robert Sapolsky’s Behave, his now classic account of why humans do good and why they do bad, pointed toward an unsettling conclusion: We may not grasp the precise marriage of nature and nurture that creates the physics and chemistry at the base of human behavior, but that doesn’t mean it doesn’t exist. Now, in Determined, Sapolsky takes his argument all the way, mounting a brilliant (and in his inimitable way, delightful) full-frontal assault on the pleasant fantasy that there is some separate self telling our biology what to do.

Geneva-born thinker Jean-Jacques Rousseau's famous work of political philosophy from 1762 is based on a give-and-take theory of the relation between individual freedom and social order: the social contract that gives the work its name. Rousseau thinks about the issue by starting with what is known as the state of nature, a lawless condition where people are free to do what they like, governed only by their own instinctive sense of justice. People are free, but they are also vulnerable to chaos.

Advertisements for soap. The image of a film star. The sight of a car as beautiful as a goddess. We accept all these common objects and experiences as normal parts of our lives and as timeless and universal as myth. But they are also carrying hidden messages that none of us even suspect, as Barthes demonstrates with a unique analysis of the signs that generate meanings and assumptions we all take for granted. These things have been "taken out of history" so that their hidden cultural meanings can be accepted without question.

This landmark book, first published in 1978, remains one of the most influential books in the Social Sciences, particularly Ethnic Studies and Postcolonialism. Said is best known for describing and critiquing "Orientalism", which he perceived as a constellation of false assumptions underlying Western attitudes toward the East. In Orientalism Said claimed a "subtle and persistent Eurocentric prejudice against Arabo-Islamic peoples and their culture."

What might society look like if we were brave enough to emerge fully from the shadow of the Christian God? The German philosopher Friedrich Nietzsche explores this intriguing question in his 1886 work, Beyond Good and Evil. Going further, Nietzsche then asks of his "philosophers of the future" that they take on the challenge of supplying humanity with new ideals to live by.

Can the Subaltern Speak? is a classic of postcolonial studies, the discipline that examines the impact of colonial control on countries that gained their independence from European powers from the 1940s onwards. The essay, written in 1988 by Calcutta-born scholar Gayatri Chakravorty Spivak, argues that a core problem for the poorest and most marginalized in society (the subalterns) is that they have no platform to express their concerns, and no voice to affect policy debates or demand a fairer share.

Why do we want to justify our decisions, even if they appear to be irrational? The answer lies in cognitive dissonance, the mental discomfort we experience when we hold two contradictory beliefs at the same time. In A Theory of Cognitive Dissonance, first published in 1957, American social psychologist Leon Festinger investigates the problem. Festinger puts forward the idea that we have developed mechanisms to try to deal with the stress brought on by cognitive dissonance.

First published in 1651, Leviathan drove important discussions about where kings get their authority to rule and what those kings must, in turn, do for their people. This is known as the "social contract". Thomas Hobbes wrote the book while exiled from his native England following the English Civil War that unseated King Charles I. In the face of England's radical - if temporary - rejection of its monarchy, Hobbes wanted to explain why it was important to have a strong central government, which in his time meant having a sovereign at its head.

In her 1958 work, political theorist Hannah Arendt asks two fundamental questions: "Under what conditions do politics emerge?" and "Under what conditions can politics be eliminated?" In searching for answers she turns some long-established thinking on its head. Ancient political philosophers such as Plato and Aristotle believed that a life spent thinking was more important than an active life of labor, work, and action. But Arendt argues that political action is every bit as important as political thinking.