Jeff Glor speaks with Susan Cain about "Quiet: The Power of Introverts in a World That Can't Stop Talking." Jeff Glor: What inspired you to write the book? Susan Cain: I was fuelled by the same ...

SUSAN CAIN is the co-founder of Quiet Revolution LLC, a company dedicated to unlocking the power of introverts for the benefit of us all. Quiet Revolution has now launched! Susan is the author of ...