Award-winning author Nicholson Baker spent parts of a semester as a substitute teacher in Maine. He chronicles his experiences in his bestselling book, which is just out in paperback. This is from the NY Times review of Substitute : “Baker’s book may be the most revealing depiction of the contemporary American classroom that we have to date.” Guest: Nicholson Baker is the author of nine novels and four works of nonfiction, including Double Fold , which won a National Book Critics Circle Award,