It is both an experiment in the attentive form of the essay - asking what happens, and where one might wander, when as readers and writers we pay minute attention to the language before us - and a polemic for certain kinds of experiment in prose. In a series of essays, each taking a single sentence as its starting point, the book explores style, voice and context. But it also uses its subjects - from George Eliot to Joan Didion, John Donne to Annie Dillard - to ask what the sentence is today and what it might become next.