All sizes are width x height.
Picas are the prefered unit of measurement. We use Adobe Photoshop 6.0, Adobe Illustrator 9.0.1, QuarkXpress 4.1.1, Adobe Acrobat 4.0 for ad creation and modification. Images with clipping paths should be saved in .eps format. All colour files should be in CMYK format, unless using spot colours. We prefer QuarkXpress files above all else.