Some readers may wonder why I post in one month (say, August) about a comic book that shows a later month (October, for instance) on its cover. What accounts for this two month (sometimes even longer) discrepancy?
Essentially, periodical publishers and distributors (then as well as now) like having their wares out on vendors’ stands as long as possible. You can still see this today with weekly magazines that come out on a Tuesday but have a cover date* for the next Monday. As long as the cover date isn’t yet in the past, publishers figure that vendors may leave the books on the stands, where customers may still buy them, rather than decide that they’re old, outdated stuff and return them to their distributor for credit, even if they’ve been out a couple of months. Most modern comics still follow this convention, even though the vast majority of them are now sold on a non-returnable basis.
All on-sale dates referenced on this blog are sourced from either the Grand Comics Database or from Mike’s Amazing World, which in turn draw their information from the Library of Congress’ Copyright Office records, the comic publishers’ own house ads, and other sources. When I can, I’ll post about a comic book in the week of the 50th anniversary of its documented on-sale date; however, due to a need to spread posts out over a month, there may be as two or even three weeks’ difference between publication and posting dates. That said, I’ll always post about a comic within the calendar month of its semicentennial.
*What I’m calling a cover date generally appears in a comic book’s indicia as well, so it would probably be more accurate to say “official date of publication”, or some similar phrase. But “cover date” is a lot quicker to write, so we’re going to go with that.