Language defines us as a species, placing humans head and shoulders above even the most proficient animal communicators. But it also beguiles us with its endless mysteries, allowing us to ponder why different languages emerged, why there isn't simply a single language, how languages change over time and whether that's good or bad, and how languages die out and become extinct.

Eating is an indispensable human activity. As a result, whether we realize it or not, the drive to obtain food has been a major catalyst across all of history, from prehistoric times to the present. Epicure Jean-Anthelme Brillat-Savarin said it best: "Gastronomy governs the whole life of man."

Most of us have a limited understanding of the powerful role economics has played in shaping human civilization. This makes economic history - the study of how civilizations structured their environments to provide food, shelter, and material goods - a vital lens through which to think about how we arrived at our present, globalized moment. Designed to fill a long-empty gap in how we think about modern history, these 48 lectures are a comprehensive journey through more than 600 years of economic history.

Chemistry and Our Universe: How It All Works is your in-depth introduction to this vital field, taught through 60 engaging half-hour lectures that are suitable for any background or none at all. Covering a year’s worth of introductory general chemistry at the college level, plus intriguing topics that are rarely discussed in the classroom, this amazingly comprehensive course requires nothing more advanced than high-school math. Your guide is Professor Ron B. Davis, Jr., a research chemist and award-winning teacher at Georgetown University.

For most of its 5,000-year existence, China has been the largest, most populous, wealthiest, and mightiest nation on Earth. And for us as Westerners, it is essential to understand where China has been in order to anticipate its future. These 36 eye-opening lectures deliver a comprehensive political and historical overview of one of the most fascinating and complex countries in world history.

Cognitive behavioral therapy (CBT) is a well-tested collection of practical techniques for managing moods and modifying undesirable behaviors through self-awareness, critical analysis, and goal-oriented change. CBT illuminates the links between thoughts, emotions, behaviors, and physical health and uses those connections to develop concrete plans for self-improvement. In 24 engaging half-hour lectures, you'll build a robust and effective self-improvement toolkit with the expert guidance of Professor Satterfield of the University of California, San Francisco.

Professor John McWhorter of Columbia University takes you back through time and around the world, following the linguistic trails left by generations of humans that lead back to the beginnings of language. Utilizing historical theories and cutting-edge research, these 34 astonishing lectures will introduce you to the major language families of the world and their many offspring, including a variety of languages that are no longer spoken but provide vital links between past and present. 

Recent years have seen the introduction of concepts from the new and exciting field of complexity science that have captivated the attention of economists, sociologists, engineers, businesspeople, and many others. These include tipping points, the wisdom of crowds, six degrees of separation (or Kevin Bacon), and emergence. Complexity science can shed light on why businesses or economies succeed and fail, how epidemics spread and can be stopped, and what causes ecological systems to rebalance themselves after a disaster.

The Early Middle Ages-the years from A.D. 650 to 1000-were crucial to Europe's future social and political development. These 24 lectures trace a journey from Scandinavia across northern and central Europe to the farthest reaches of the Byzantine and Islamic empires, providing an exciting new look an era often simply called the "Dark Ages."

The deep-seated origins and wide-reaching lessons of ancient myths built the foundation for our modern legacies. Explore the mythologies of Europe, the Americas, Asia, Africa, and the Middle East. Learn what makes these stories so important, distinctive, and able to withstand the test of time. Discover how, despite geographical implausibilities, many myths from across the oceans share themes, morals, and archetypes.

Ancient Egyptian civilization is so grand our minds sometimes have difficulty adjusting to it. It lasted 3,000 years, longer than any other on the planet. Its Great Pyramid of Cheops was the tallest building in the world until well into the 19th century and remains the only Ancient Wonder still standing. And it was the most technologically advanced of the ancient civilizations, with the medical knowledge that made Egyptian physicians the most famous in the world.

Where do we come from? How did our ancestors settle this planet? How did the great historic civilizations of the world develop? How does a past so shadowy that it has to be painstakingly reconstructed from fragmentary, largely unwritten records nonetheless make us who and what we are?

These 36 lectures bring you the answers that the latest scientific and archaeological research and theorizing suggest about human origins, how populations developed, and the ways in which civilizations spread throughout the globe.

If you’ve ever wanted to delve more deeply into the mysteries of human emotion, perception, and cognition, and of why we do what we do, these 48 lectures offer a superb place to start. With them, you’ll see the entire history of psychology unfold. In the hands of Professor Robinson, these lectures encompass ideas, speculations, and point-blank moral questions that might just dismantle and rebuild everything you once thought you knew about psychology.

In an exciting partnership with the Smithsonian, The Great Courses presents these 24 lectures that offer an unforgettable tour of Japanese life and culture. Professor Ravina, with the expert collaboration of the Smithsonian's historians, brings you a grand portrait of Japan.

One of the greatest scientific feats of our era is the astonishing progress made in understanding biology-the intricate machinery of life-a progress to which the period we are living in right now has contributed the most.As you read these words, researchers are delving ever deeper into the workings of living systems, turning their discoveries into new medical treatments, improved methods of growing food, and innovative products that are already changing the world.