Sketchbook in hand, Stan Mack haunted the New York City environs, watching, listening, overhearing, and interviewing its inhabitants. He drew a comic strip every week based on what he saw and heard, famously using verbatim dialogue for his graphic dramatizations. A mixture of humor, spontaneity, serendipity, and weirdness, Mack's comic strip snapshots caught New Yorkers -- whether it is an extortionist calligrapher, a baby evading arrest at her first...