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.

Education can be enriching and transformative. It can also be downright excruciating—even demoralizing. When it comes to learning, why are some of us lovers and some of us haters? Welcome to the world of educational psychology, which uses science to explore what causes people to engage and learn, and what we can do to make learning opportunities more enjoyable and impactful. Spoiler alert: Teachers can only do so much. Students, too, must take control of their learning. Unfortunately, many of us never, ahem, learned the skills to do just that.

What is our species' greatest invention? Medicine, computers, space travel? Not even close. The innovation that underlies each of our past achievements and those we still aspire to is language. Language is the ultimate invention of Homo sapiens - one that has allowed us to change the physical and social world around us in every conceivable way, and an invention that has fundamentally changed us, as well.

On the world called Hyperion, beyond the law of the Hegemony of Man, there waits the creature called the Shrike. There are those who worship it. There are those who fear it. And there are those who have vowed to destroy it. In the Valley of the Time Tombs, where huge, brooding structures move backward through time, the Shrike waits for them all.