“Who are you?” Chances are you’d answer this question by describing the highlights of your personality and life experiences. But if you’d been asked this same question yesterday, you might have responded with a slightly different description. Does that mean you are a particular person today but were a different person yesterday? And what about tomorrow? Welcome to the slippery, shape-shifting nature of memory. As Professor Gabrielle Principe reveals, “you” are the conglomeration of the often-unreliable information your brain decides to feed you at any given moment.

Accompanied by a selection of guests, Professor Jortner takes you through a mind-bending exploration of the history that could have been. Captivating storytellers and imaginative thinkers, these experts show how history is contingent on split-second decisions, near misses, and sheer dumb luck. By reflecting on what didn’t happen, 10 Great What-Ifs of American History gives you new insights on what did happen—and the impact on our world today.

In the 12 fascinating lectures of Gut Health Explained, Dr. Gabrielle Fundaro shares the latest scientific knowledge about the trillions of organisms that live in your gut. In this course, you'll learn how to navigate the evolving landscape of gut microbiome science while gaining a deep understanding of the intricate interplay between you and your microbiome.

Spaceflight is notoriously dangerous. Beyond launch mishaps and equipment failures, astronauts face serious health problems from long-term weightlessness and high-energy radiation. Not to mention, the space environment is a near-perfect vacuum that can quickly kill anyone who is unprotected. Drawing on the hard-won insights of NASA astronauts and space researchers, this 12-lecture course presents the perils of spaceflight and what experts have done to make them survivable. It also deals with livability in space, including nutrition, sleep, environmental control, and personal hygiene.

Religion is foundational to what it means to be human. Our quest for meaning is as ancient as our very existence, stretching back to a time when Neanderthal burials and Paleolithic figurines suggest our ancestors recognized a power that transcended visible reality. From ancient civilizations to the 21st century, belief in a higher power seems to be a universal human instinct. These 12 thought-provoking lectures introduce you to the world of comparative religion, giving you insights into a variety of religious expressions and human cultures.

In the 24 fascinating lectures of Existentialism and the Authentic Life, Professor Skye C. Cleary will lead you through the writings of many existentialists to help you understand how they addressed the biggest of all questions. Writing about love, death, sex, war, plagues, intrigue, murder, deception, and more, these thinkers guide you toward living an authentic and meaningful life in a world that often seems absurd.

10 interview-based episodes that take ancient designs and applies them to modern lives. Your expert is Prince EA, an artist and inspirational speaker who’s spent the greater part of his career thinking about the ancient world.

In the 12 fascinating lectures of Warping Reality: Inside the Psychology of Cults, you will learn about some of the most widely known cults of modern times. But unlike any standard news reporting or documentary about the Peoples Temple, The Manson “Family,” The Branch Davidians, Heaven’s Gate, Children of God, the Unification Church, and NXIVM, your expert, Dr. Wind Goodfriend, will help you explore the psychology of these cults. How could these cult leaders have committed such heinous crimes under the guise of “helping” members in their development?

Sex. The word makes some people giggle or blush, while others may draw back in discomfort. So, why do we find it so difficult to talk openly about sex? Much of our reticence in discussing and acknowledging the realities of sex comes, at least in part, from a unique time and place: medieval Europe. In the 12 episodes of Sex in the Middle Ages, Professor Jennifer McNabb and a panel of experts in medieval history and literature will take you back to the period between the fall of Rome and the rise of the Renaissance to explore the ideals and realities of sex and sexuality.

Many Americans know that our nation’s founders drew inspiration from the political systems of ancient Rome and Greece. But what exactly were these influences? And did they shape the United States in far-reaching ways? In these 24 compelling lectures, Professor Winterer takes you on a journey into the thought and actions of the American revolutionaries, showing how classical antiquity shaped every aspect of the revolutionary and founding era.

In London in the Time of Dickens, you’ll get the unique opportunity to experience the British capital through the eyes of a literary master whose work is inextricably tied to the city and its rich history. Throughout 12 lectures taught by Professor Lillian Nayder of Bates College, you’ll tour the city of London in a time of rapid transformation through the life and work of Charles Dickens, uncovering the history of the metropolis, while also witnessing the everyday experiences of Londoners from all walks of life as Dickens represents them.

In Communism in Decline: From Sputnik to Gorbachev, Professor Vejas Gabriel Liulevicius reveals the internal and external forces that ripped apart the grand communist experiment. What were the mistakes made by the Soviet leaders who believed too deeply in their own propaganda? And why were they not able to see the many ironies in their own poor decisions? In 12 fascinating lectures, you will learn how the Soviet Union went from winning the space race against the United States in 1957 to Gorbachev’s resignation and the dissolution of the great experiment in 1991.

Owing to the legacy of slavery, African Americans have faced significant obstacles to obtaining the fundamental rights of freedom and citizenship. The consistent struggle among African Americans to gain their human rights live at the heart of the American experiment in democracy. In the 24 compelling lectures of African American History: From the African Coast to the Civil War, take a penetrating look at the experience of African Americans in the colonial and antebellum eras

Science and technology are, without a doubt, two forces that will change the way you live your life in the coming months, years, and decades. And in recent decades, these forces have evolved and developed at a lightning-fast pace. Explore the many possibilities of what your future may look like with these 24 lectures: a scientifically accurate and enlightening survey of today's most advanced research in fields such as engineering, biology, chemistry, and theoretical physics.

Railways are one of the most important inventions in modern history. From the 1825 opening of the Stockton and Darlington Railway in England, trains revolutionized both travel and trade and radically changed the way we experience the world. In the 24 richly illustrated lectures of How Railways Transformed the World, you’ll experience the amazing world and impact of railways, from the early 19th century to today’s futuristic trains, including extensive material on the pleasure and appeal of rail travel today.

Richard Dawkins' brilliant reformulation of the theory of natural selection has the rare distinction of having provoked as much excitement and interest outside the scientific community as within it. His theories have helped change the whole nature of the study of social biology, and have forced thousands to rethink their beliefs about life.

Astrophysicist Neil deGrasse Tyson has attracted one of the world’s largest online followings with his fascinating, widely accessible insights into science and our universe. Now, Tyson invites us to go behind the scenes of his public fame by unveiling his candid correspondence with people across the globe who have sought him out in search of answers. In this hand-picked collection of 100 letters, Tyson draws upon cosmic perspectives to address a vast array of questions about science, faith, philosophy, life, and of course, Pluto.

How the Earth Works takes you on an astonishing journey through time and space. In 48 lectures, you will look at what went into making our planet - from the big bang, to the formation of the solar system, to the subsequent evolution of Earth.

Hilarious, fascinating, and a roller coaster of dizzying, historical what-ifs, Napoleon's Hemorrhoids is a potpourri for serious historians and casual history buffs. In one of Phil Mason's many revelations, you'll learn that Communist jets were two minutes away from opening fire on American planes during the Cuban missile crisis, when they had to turn back as they were running out of fuel. You'll discover that before the Battle of Waterloo, Napoleon's painful hemorrhoids prevented him from mounting his horse to survey the battlefield.

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.

Welcome to the Universe is a personal guided tour of the cosmos by three of today's leading astrophysicists. Inspired by the enormously popular introductory astronomy course that Neil deGrasse Tyson, Michael A. Strauss, and J. Richard Gott taught together at Princeton, this book covers it all - from planets, stars, and galaxies to black holes, wormholes, and time travel.

From launchpad explosions to a pernicious cricket infestation to the demanding management style of Musk himself, the rise of SpaceX was beset with challenges and far from inevitable. Find out how the startup beat the odds and flew high enough to outpace their rivals... and where they're going next.

How do today's most successful tech companies - Amazon, Google, Facebook, Netflix, Tesla - design, develop, and deploy the products that have earned the love of literally billions of people around the world? Perhaps surprisingly, they do it very differently from the vast majority of tech companies. In Inspired, technology product management thought leader Marty Cagan provides listeners with a master class in how to structure and staff a vibrant and successful product organization and how to discover and deliver technology products that your customers will love.

In The Butchering Art, the historian Lindsey Fitzharris reveals the shocking world of 19th-century surgery on the eve of profound transformation. She conjures up early operating theaters - no place for the squeamish - and surgeons, working before anesthesia, who were lauded for their speed and brute strength. They were baffled by the persistent infections that kept mortality rates stubbornly high. A young, melancholy Quaker surgeon named Joseph Lister would solve the deadly riddle and change the course of history.

In this illuminating audiobook, Tyson and coauthor James Trefil, a renowned physicist and science popularizer, take on the big questions that humanity has been posing for millennia - How did life begin? What is our place in the universe? Are we alone? - and provide answers based on the most current data, observations, and theories.

“Who are you?” Chances are you’d answer this question by describing the highlights of your personality and life experiences. But if you’d been asked this same question yesterday, you might have responded with a slightly different description. Does that mean you are a particular person today but were a different person yesterday? And what about tomorrow? Welcome to the slippery, shape-shifting nature of memory. As Professor Gabrielle Principe reveals, “you” are the conglomeration of the often-unreliable information your brain decides to feed you at any given moment.

Over the course of 24 in-depth lectures, Professor Emily Graham, an Associate Professor of History at Oklahoma State University, surveys the global history of Christian sainthood. As you’ll discover, the stories of Christian saints are not just fascinating—they’re also an integral part of Christian history.

10 interview-based episodes that take ancient designs and applies them to modern lives. Your expert is Prince EA, an artist and inspirational speaker who’s spent the greater part of his career thinking about the ancient world.

Owing to the legacy of slavery, African Americans have faced significant obstacles to obtaining the fundamental rights of freedom and citizenship. The consistent struggle among African Americans to gain their human rights live at the heart of the American experiment in democracy. In the 24 compelling lectures of African American History: From the African Coast to the Civil War, take a penetrating look at the experience of African Americans in the colonial and antebellum eras

There was a time, not too long ago, when talking openly about race was considered in poor taste. If you had good manners, you just didn’t talk about politics, religion, or race—not with your family or friends, and certainly not with your coworkers. Even now, many people feel the topic of race is better left alone. Professor Anita Foeman understands those worries. In How to Talk about Race, she addresses those specific concerns and others, giving common-sense guidance and step-by-step instructions you can employ to develop safe and productive dialogue about race.

In London in the Time of Dickens, you’ll get the unique opportunity to experience the British capital through the eyes of a literary master whose work is inextricably tied to the city and its rich history. Throughout 12 lectures taught by Professor Lillian Nayder of Bates College, you’ll tour the city of London in a time of rapid transformation through the life and work of Charles Dickens, uncovering the history of the metropolis, while also witnessing the everyday experiences of Londoners from all walks of life as Dickens represents them.

The fight for democracy and social justice is a collective, ongoing project. And those fighting for justice today cannot afford to forget the remarkable accomplishments of Black women who were activists in the Civil Rights movement. Their lives and accomplishments are a testament to the power of activism and to the enduring and evolving struggle for equality. In her Audible Original, Black Women of the Civil Rights Movement, Dr. Wendi Manuel-Scott illuminates the lives of six extraordinary Black women—most of whom, regrettably, remain unknown to many.

Sales is not about being pushy, aggressive, or unethical. In fact, you might be surprised to learn that “sales” is about nurturing, solving problems, helping, and building relationships. When you learn the right strategies to sell something, you’ll make your own life better because we are all constantly selling—whether it’s getting a promotion, working on a team project, or even just selecting the restaurant of your choice with friends.

The United States Navy has played an essential role both in resolving conflicts and in peacekeeping throughout the entire history of the United States. Today, the US Navy, the world’s most powerful naval force, remains a critical tool of American foreign policy, and a key player in preserving geopolitical stability throughout the world. In The History of the United States Navy, Professor Craig L. Symonds brings alive the extraordinary saga of America’s naval forces, from the first naval shipbuilding on Lake Champlain in 1775 to the present age of nuclear-armed submarines.

Religion is foundational to what it means to be human. Our quest for meaning is as ancient as our very existence, stretching back to a time when Neanderthal burials and Paleolithic figurines suggest our ancestors recognized a power that transcended visible reality. From ancient civilizations to the 21st century, belief in a higher power seems to be a universal human instinct. These 12 thought-provoking lectures introduce you to the world of comparative religion, giving you insights into a variety of religious expressions and human cultures.

Lunar New Year, or the first new moon of the lunar calendar, is celebrated by people around the world and across different cultures. Within Chinese culture, the ushering in of a new year is celebrated through one of 12 distinct zodiac animals, each of which is known for its power to map a person’s behavior, character, and fate. In The Chinese Zodiac in Cultures and Traditions, you’ll gain insights into how cultures make sense of the passing of time and our relationship to it.

For millennia, philosophers and scientists have been trying to unlock the secrets of the mind with only limited success—until now. Today, with modern technologies including the best in neuroscience, medical imaging, and recent advances in artificial intelligence, we are making more progress than ever before. In Introduction to Cognitive Science, Professor Thad A. Polk takes you on a fascinating tour of the latest discoveries in the relatively new field of cognitive science. In 24 exciting lectures, Professor Polk shares dozens of the most challenging questions in cognitive science today.

The 24 revealing lectures of Unsung Heroes of the Ancient World reconstruct over a dozen biographies from the classical world—most of them little-known, some of them quite unlikely heroes. With Professor Emeritus Gregory Aldrete as your expert guide, you will meet the ambitious travel writers, dedicated engineers, careful cartographers, diligent farmers, woman philosophers, devoted wives, skilled military generals, African rebels, Persian kings, and impressive athletes who stood out among their peers centuries ago.

In Communism in Decline: From Sputnik to Gorbachev, Professor Vejas Gabriel Liulevicius reveals the internal and external forces that ripped apart the grand communist experiment. What were the mistakes made by the Soviet leaders who believed too deeply in their own propaganda? And why were they not able to see the many ironies in their own poor decisions? In 12 fascinating lectures, you will learn how the Soviet Union went from winning the space race against the United States in 1957 to Gorbachev’s resignation and the dissolution of the great experiment in 1991.

What explains the brain-body connection? How is it that something intangible like stress can really kill? How about the fact that we can and often do worry ourselves sick? And how can we take advantage of the mind’s connection to the body to reduce pain, boost physical performance, and even treat disease? Answer these questions and more in The Power of Mind over Body, a 12-lecture course that will change the way you think about physical health and the brain.