Author Susan Cain, a self-described introvert, accepted an invitation to do what she feared — give a TED talk. Although she was anxious on the big day, she got through it and wowed the audience.

While we all know individuals who are wildly outgoing, plenty of fun to be around and occasionally even obnoxious, chances are we relate less to these extroverts and more to introverts or people ...

Part 2 of the TED Radio Hour Episode We Contain Multitudes. Words like introvert and extrovert help us make sense of the world, but one label can't sum up a person. Susan Cain explores how we can ...