The main requirement is that the creation is done on a Mac. At present, Mouse Tracks is distributed by email in PDF format. The cover trims at 8 1/4 by 11. With 1/8″ bleed on three sides, dimensions are 8 3/8 by 11 1/4. If your art occupies the full cover, take into consideration the Mouse Tracks masthead that we place at the top, to avoid having anything critical in your art being covered up. For smaller art we can create a background to complement it. Prior to submitting high-resolution art, send low-res examples to info@pmug.org. Low-res should be 72 ppi saved as jpeg at high quality. Final high-res images must be at least 266 ppi at actual size. If you need more info, contact the editor at info@pmug.org.