All the bold ideas, inventions and perspectives of the beloved TED Talks conference and video series, plus special follow-up interviews with the people behind them.

Can't seem to match the energy of a good friend? You might be on opposite ends of the personality spectrum — and that's OK.

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.

My friend Ted is a musician. He’s kind of quiet with a great sense of humor. He enjoys getting together with friends, but not too many at a time, and his fuse is pretty short when it comes to being ...

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 ...