This document provides information on common paper sizes and weights used in printing. It lists various standard paper sizes from A0 to A7 in both European and US dimensions that are suitable for different print applications like posters, flyers, brochures and books. The document also outlines common paper weight ranges in grams per square meter (gsm) for different types of paper and print jobs, from light weight papers below 55 gsm to heavier papers over 300 gsm used for items like business cards, invitations and brochure covers. Sources for the paper size and weight data are referenced.