I didn't know that NYC was at one time The Big Oyster instead of the Big Apple. The Hudson River estuary had an abundance of oysters, so much so that it was a leader in oyster production, exporting them around the world. This book weaves the history of the NYC metropolitan area and oysters. Unfortunately, many oysters have disappeared or became contaminated so NY is no longer associated with this mollusk. I found the book interesting and readable and hope to read other books by the author in the new future.