Deep in the swampy heart of ancient Mexico, the Olmecs built a grand and influential civilization between 1800 and 400 BCE. The archaeological remains raise more questions than answers about the origins and legacy of this captivating Mesoamerican culture. How did the Olmecs carve and carry their famous colossal heads? Why did they live in flood-prone wetlands when better agricultural land was available? What are the secrets of their written language, and how can we unlock them?

The Roman Empire: From Augustus to the Fall of Rome traces the breathtaking history from the empire’s foundation by Augustus to its Golden Age in the 2nd century CE through a series of ever-worsening crises until its ultimate disintegration. Taught by acclaimed Professor Gregory S. Aldrete of the University of Wisconsin-Green Bay, these 24 captivating lectures offer you the chance to experience this story like never before, incorporating the latest historical insights that challenge our previous notions of Rome’s decline.

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.

New from the author of the acclaimed bestseller The Rise and Fall of the Dinosaurs (“A masterpiece of science writing.” —Washington Post) and “one of the stars of modern paleontology” (National Geographic), a sweeping and revelatory history of mammals, illuminating the lost story of...

NATIONAL BESTSELLER Food & Wine editor Ray Isle does for wine what Michael Pollan’s The Omnivore’s Dilemma did for food—showing readers how to choose more delicious, interesting, and environmentally friendly wines without breaking the bank. So much of today’s wine is mass-produced...