Book excerpt: These essays follow a veteran teacher educator and school reform activist as he tries to understand an enterprise he calls "mysterious and immeasurable." By focusing on the authentic experiences of teaching and learning that he has lived over the past 15 years, Bill Ayers reconsiders, argues, reflects, and searches for ways to break through the routine and the ordinary to see teaching as the important and extraordinary work it is. Covering a range of issues—standards, equity, testing, professionalism—this book shows us teaching as an achingly personal calling, and ultimately as a social and a political act. With these essays, Bill Ayers invites teachers into a wonderful conversation about the meaning of teaching as craft, as art, as vocation. He reminds us that an active kind of hope is at the core of teaching,seeing things both as they are and as they could be.