The Fresh Face of US Presidential Race.

It is 9 A.M. on a fresh, sunny Saturday in Rockford, Ill., and nearly a thousand people have gathered in the gymnasium at Rock Valley College to participate in a town meeting with their Senator, Barack Obama. It is an astonishingly large crowd for a beautiful Saturday morning, but Obama--whose new book, The Audacity of Hope, is excerpted starting on page 52--has become an American political phenomenon in what seems about a nanosecond, and the folks are giddy with anticipation. "We know he's got the charisma," says Bertha McEwing, who has lived in Rockford for more than 50 years. "We want to know if he's got the brains." Just then there is a ripple through the crowd, then gasps, cheers and applause as Obama lopes into the gym with a casual, knees-y stride. "Missed ya," he says, moving to the microphone, and he continues greeting people over raucous applause. "Tired of Washington."