This issue is a variant of Marvel Team-Up (Marvel, 1972 series) #51.
Letters from readers - Robert Sodaro, Doug Zimmerman, The Marveriter, Pat Madrid and J. Doug Dennis - and responses from Bill Mantlo.
Stan Lee talks about the new comicbook indexes by George Olshevsky, with the first one being Marvel Comics Index of the Amazing Spider-Man.
Ad for Hostess Cup Cakes. Marvel ad #9.