Since we know TED speakers love to read, we asked them: What book could you not stop reading? Here are their eclectic picks, ready for gifting or for sticking in your carry-on.

Once upon a time, you would have thought long and hard before you bought sneakers from a stranger in another country or rented out your home to one. So what made you feel it was safe, useful and okay? Trust researcher Rachel Botsman explains the process.

Kio Stark loves to talk to strangers — but she knows every exchange started is one that must be ended. Here, she shares how to gracefully step away.

The brain in your head and the one in your gut are always exchanging info. But how do they do it? Neuroscientist Diego Bohórquez is trying to find out the answers.

Veteran financier Ray Dalio has been in every kind of meeting: the good, the bad and the ugly. Here’s how he keeps his meetings focused and productive.

Helping prisoners get a legal education benefits them and the world, says African Prison Project founder Alexander McLean: They can help their fellow inmates with their legal expertise, and when they’re released, they can help society, too.

Most people’s hearts leap up when they see the words “50% off” or “Buy One Get One Free.” Unfortunately, discounts cause us to act quickly and spend more than we should, say economist Dan Ariely and writer Jeff Kreisler.