High Quality Content by WIKIPEDIA articles! The Official Marvel Index is a series of comic books released by Marvel Comics which featured synopses of several Marvel series. The books were largely compiled by George Olshevsky (who was for fourteen years the sole owner of a complete collection of Marvel superhero comics dating from Marvel Comics #1, published in 1939), and featured detailed information on each issue in a particular series, including writer and artist credits, characters who appeared in the issue, and a story synopsis. A similar series of indices was published for DC Comics.