Dell published comics from 1929-1974 and was arguably one of the largest publishers of its day with a peak in the 1950's. Dell's most notable title from 1938-1968 was the anthology series FOUR COLOR. It was published several times per month with predominantly stand-alone issues featuring all kinds of licensed characters and properties which would launch into their own series if successful. At ~1350 issues, FOUR COLOR is a massive series, but hardly any of the issues bear the name 'Four Color' on the cover, so it's not a very recognizable series name. FOUR COLOR also appears in the indicia of only a small subset of issues. Instead issues are predominantly associated with the cover title of the character or property with the mostly sequential numbering compounding the confusion. Many issues bear the number '#1,' but many more have high sequential numbers. There's at least one duplicate number in the series, and several numbers skipped. Maggie and Don Thompson spearheaded a fan-based bibliographic cataloging of all the Dell Four Color Comics in the early 1960's and in 1968 issued A Listing of Dell Special Series Comic Books (and a Few Others) as the definitive source of information on FOUR COLOR. Dell's MOVIE CLASSICS anthology series is another series mostly identified by the issue titles/numbers instead of its series title.