In 1985, the husband-and-wife team of Aaron Silverman and Molly Maguire published the first of what the Library of Congress would later call "the decade's most exciting American maps." This was The Raymond Chandler Mystery Map of Los Angeles, a glovebox convenient and critically exhaustive guide to the actual locations mentioned in the Philip Marlowe books and stories, from Pasadena to Bay City (Santa Monica), Lake Arrowhead to Hollywood. The map has been out of print for years...