It is the duty of the Advertising Manager to maximize both, first by selling ad space in the absolute, and second to save the Editor from having to print blank space or clipart, neither of which promote the goal of the publication.
Ads are offered by the quarter page, vertical half page, horizontal half page, and full page. There is no additional charge for cover 3 (inside back cover), and ad space is normally not available on the outside covers, cover 2 (inside front cover), or page 3 (opposite cover 2). However, proposals for such may be entertained by the [[Omnibus Editor|''Omnibus'' Production Editor]].
The printed size of a 1/4-page ad is 3.65" wide by 4.9" tall. A vertical half-page is 3.65×10" tall. A horizontal half-page is 7.5" wide by 4.9" tall. A full page is 7.5" by 10".