[20:00] Susan Cain, author of the New York Times best-selling book "Quiet: The Power of Introverts in a World That Can’t Stop Talking," shares important and sometimes surprising insights about the differences between introverts and extroverts, and how introverts can be powerful leaders and communicators. Cain, a popular speaker at TED2012, was profiled in the December issue of the Toastmaster magazine. See the complete description at http://www.dowellwebtools.com/tools/bg/Bo/tmpodcast