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.

A work that had a huge influence on great thinkers including celebrated German philosopher Immanuel Kant, An Enquiry is Hume's examination of how we obtain information and form beliefs. He argues that we mainly gain knowledge through our senses, a theory known as empiricism. But while the impressions from our senses are key to our beliefs about the world, Hume argues that reason and facts play only a limited part.

On the Genealogy of Morality was written in 1887 when Friedrich Nietzsche was at the height of his powers as a philosopher and master of German prose writing. Here, he criticizes the idea that there is just one conception of moral goodness, dissecting the contemporary practice of morality and looking at it from a historical viewpoint. Rather than following a metaphysical or religious approach, Nietzsche adopts a naturalistic framework, which is grounded in history and natural science, to understand our concepts of good and evil in the Christianized Western world.

Sociologist Émile Durkheim's 1897 work On Suicide is a powerful evidence-based study of why people take their own lives. In the late 19th century it was generally accepted that each suicide was an individual phenomenon, caused by such personal factors as grief, loss, and financial problems. But Durkheim felt there were patterns in suicide rates, and believed that a more likely cause of suicide lay in the individual's relationship to society.

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.

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.

Arguing first that what might be termed a morally good action is one that increases the general sum of happiness in the world, Mill then says that general principles of justice should be based on this idea. Therefore, in life, there is no conflict between what is just and what is morally right. Mill published Utilitarianism toward the end of a lifetime spent as a moral philosopher, political activist, and social reformer.

In his 1807 work Phenomenology of Spirit, G. W. F. Hegel introduced the world to his philosophical system. His most influential work - and the culmination of the German Idealist movement begun in the late 18th century as a response to the works of Immanuel Kant - the book remains one of the undisputed classics of Western thought.

Clifford Geertz's first collection of essays, The Interpretation of Cultures (1973), made him a leading voice of anthropology's "symbolic" movement, which believed scholars should read the signs and symbols of a culture from the perspective of its natives. Geertz's approach helped anthropology reinvent itself as a scientific discipline that is still relevant today, making him - in the words of one critic - "a true giant of social and cultural theory."

Kenneth Waltz's Theory of International Politics created a "scientific revolution" in international relations, starting two major debates. In the 1980s it defined the controversy between the neorealists, who believed that competition between states was inevitable, and the neoliberals, who believed that states could cooperate with each other. As the debate wound down with the end of the Cold War in the 1990s, a second more fundamental debate began.

In her latest groundbreaking book, The Let Them Theory, Mel Robbins—New York Times bestselling author and one of the world's most respected experts on motivation, confidence, and mindset—teaches you how to stop wasting energy on what you can't control and start focusing on what truly matters: YOU. Your happiness. Your goals. Your life.

Tegan is eight months pregnant, alone, and desperately wants to put her crumbling life in the rearview mirror. So she hits the road, planning to stay with her brother until she can figure out her next move. But she doesn't realize she's heading straight into a blizzard. She never arrives at her destination. Stranded in rural Maine with a dead car and broken ankle, Tegan worries she's made a terrible mistake. Then a miracle occurs: she is rescued by a couple who offers her a room in their warm cabin until the snow clears. But something isn't right.

No matter your goals, Atomic Habits offers a proven framework for improving - every day. James Clear, one of the world's leading experts on habit formation, reveals practical strategies that will teach you exactly how to form good habits, break bad ones, and master the tiny behaviors that lead to remarkable results. If you're having trouble changing your habits, the problem isn't you. The problem is your system. Bad habits repeat themselves again and again not because you don't want to change, but because you have the wrong system for change.

It’s a beautiful day in Newport, Rhode Island, when Phoebe Stone arrives at the grand Cornwall Inn wearing a green dress and gold heels, not a bag in sight, alone. She's immediately mistaken by everyone in the lobby for one of the wedding people, but she’s actually the only guest at the Cornwall who isn’t here for the big event. Phoebe is here because she’s dreamed of coming for years—she hoped to shuck oysters and take sunset sails with her husband, only now she’s here without him, at rock bottom, and determined to have one last decadent splurge on herself.

Meet Randi Burnett—she’s brilliant, she’s beautiful, and she works for the bride. Missing groom? Intoxicated in-laws? Crying ring-bearer? You name it, she wrangles it. Too bad her personal life isn’t thriving like her side gig as a bridesmaid for hire. Recently dumped, Randi throws herself into her biggest challenge yet when she’s hired as a maid of honor and pretend best friend for an ice queen bride. There’s just one problem—the best man is infuriating, overprotective, and anti-marriage.