San Antonio’s Paper Trail, an annual gathering and exhibition for designers and printmakers, is hitting its 10th anniversary. As with previous installments, the free, Sunday, July 21, gathering at east-of-downtown music venue The Rock Box will allow visitors to browse works of contemporary art and design on paper, most with affordable price tags. Some 55 artists and vendors will show off screen prints, hand-lettered typography, lithographs, etchings, relief prints, digital prints, stickers, zines and more.