I Am Legend by Richard Matheson

"Robert Neville is the last living man on Earth . . . but he is not alone. Every man, woman, and child in the world has become a vampire, and they are all hungry for Neville's blood. Now available in an Orb Books paperback edition, this classic novel is universally regarded as one of the most frightening and influential vampire novels ever written." (from Amazon.com)

Paperback Info: ISBN 031286504X, Tor Books, 1954

Website: John's I Am Legend Page