Near Mint (NM), Excellent (EX), Very Good (VG), and Poor (PR). Stain (ST), Off-Center (OC), Mis-Cut (MC), Mark (MK), Mark/Writing (MK/WTG), Crease (CR), Print Defect (PD), Print Line (PL), Gum Stain (GS), Wrinkle (WR), Paper Loss (PL), Pinholes (PH), Surface/Edge Issue (SU), Binder Ding (BD).