Discover the world records that define our history and jump headfirst into the past using scientific data that reveals accurate and insightful answers to life�

What was history's biggest empire? Or the tallest building of the ancient world? What was the average life expectancy in medieval Byzantium? The average wage in

Figuring explores the complexities of love and the human search for truth and meaning through the interconnected lives of several historical figures across four

WE ARE ON THE WRONG TRACK Seventy percent of Americans (and counting) think so. The real wage of a US worker today is less than it was 40 years ago-but there ar

A totally accessible user's guide from the creator of a scientifically proven form of psychotherapy that has successfully treated millions of people worldwide.