Please find below some definitions you may find useful:

Litho / Lithography Transferring images and text onto paper from a metal sheet.
Digital Printing Printing directly from a computer. This form of printing can be more cost effective on shorter print runs and also allows for variable print jobs.
A7 105mm x 74.25mm
A6 148.5mm x 105mm
A5 210mm x 148.5mm
A4 297mm x 210mm
A3 420mm x 297mm
A2 594mm x 420mm
A1 841mm x 594mm
A0 1188mm x 841mm

Environmental Policy Statement
John Mason Printers, Back Park Avenue, Skipton, North Yorkshire, BD23 1PN
Tel: +44 (0)1756 792019   Fax: +44 (0)1756 791248   Email: info@johnmasonprinters.co.uk