This document summarizes common symptoms of plant viral diseases seen in leaves, including chlorosis, epinasty, enation, etching, leaf curling, leaf rolling, mosaic, mottle, necrosis, phyllody, proliferations, ringspot, stunting, stripe, stunting/dwarfing, tumours/galls, vein clearing, vein banding, yellowing, yellow mosaic. Examples are provided for each symptom along with a brief definition. A YouTube video with additional details is also referenced.