Something is going on out there. Almost simultaneously, many of our finest writers are experimenting with a new nonfiction form: brief pieces that are literary and personal rather than informational, complete in themselves, and short--very short. Although the form has not had a name until now, the writers who are attracted to it include the known--Tim O'Brien, Barry Lopez, Terry Tempest Williams, Michael Ondaatje--as well as just-discovered voices...