“Those Who Teach Us,” a special exhibition to celebrate the artists who shape, inspire and guide the creative community at Arts on Main, will open with a reception from 5:30-7:30 p.m. Friday at the gallery at 6580 Main Street, Gloucester. The show highlights original works by the instructors who lead classes in the gallery. In the classroom, the artists demonstrate technique, encourage experimentation, and help students find their artistic voice, said a press release, while this show will include works that reflect their individual styles, inspirations and artistic journeys. “‘Those Who Teach Us’ celebrates the profound impact of mentorship in the arts,” said the release. “It is an opportunity to honor the makers who guide, inspire, and remind us that art is meant to be shared. Join us in recognizing the mentors behind the masterpieces—and experience the work of the artists who make learning possible.” This First Friday event is free and open to the public. Live music will be performed...