Author:John Costello

This is an ISFDB Bibliographic Comments page for the author (or artist or editor) John Costello. This page may be used for bibliographic comments or extended notes about the author, or discussion on how to the author's works are to be recorded . The link above leads to the ISFDB summary record for John Costello. Please use Bio:John Costello for a biographical sketch of this person. To discuss what should go on this page, use the talk page. For more on this and other header templates, see Header templates.

John H. Costello often uses this byline in his articles (especially those published in Locus.) The author of the Pocket SF Film book is probably a British author, and this is assumed to be his real name. At this point disambiguation of the names is not necessary, as long as editors make sure to variant any of John H. Costello's work to his parent name.