Sigmund Freud (1856-1939) is remembered as the father of psychoanalysis. Civilization and Its Discontents (1930) is one of his key works, written three decades after his seminal book The Interpretation of Dreams. In it he considers the conflict between the needs of the individual acting both egotistically and altruistically in the pursuit of happiness and the myriad demands of civilised society and the ensuing tensions this clash of needs and demands generates.

Religion is at the heart of man’s societies. ‘For a long time,’ Durkheim writes early on in his book, ‘it has been known that the first systems of representations with which men have pictured to themselves the world and themselves were of religious origin.’ Durkheim decided to examine how and why this phenomenon functioned and evolved - by looking specifically at simple societies and their religions, rather than at religions in more complex or developed societies.

When it first appeared in France, Anti-Oedipus was hailed as a masterpiece by some and "a work of heretical madness" by others. In it, Gilles Deleuze and Félix Guattari set forth the following theory: Western society's innate herd instinct has allowed the government, the media, and even the principles of economics to take advantage of each person's unwillingness to be cut off from the group. What's more, those who suffer from mental disorders may not be insane, but could be individuals in the purest sense, because they are by nature isolated from society.

William James was one of the most influential figures in 19th-century American philosophy and psychology. His Pragmatism is a set of lectures that he gave in 1906-07 in answer to the enduring debate between empiricism and rationalism. Shifting between them, he proposed pragmatism as a method, the idea being that the value of any truth is dependent upon its utility–upon its practical and experiential consequences.

Byung-Chul Han, a star of German philosophy, continues his passionate critique of neoliberalism, trenchantly describing a regime of technological domination that, in contrast to Foucault’s biopower, has discovered the productive force of the psyche.