There are three forms: TAG (signature), T-UP (quick, simple, monochrome or unfilled font) and PIC (relatively complete graffiti works). The following are some common old schools (Dongdi Sento Bando, a representative figure with relatively simple fonts before the 1980s). The new school (post-80s style pays more attention to the effect, representing gorgeous characters: OMEGA POSE) is a versatile style (the versatile style has strong tension and exaggerated deformation, and there are many auxiliary elements similar to arrows. Please refer to the representative figure of the film wild style: DOES (Brazil) CAN2).