Greg Bartz is a tattoo artist and illustrator operating Black Anvil Tattoo Shop at 3439 Adams Ave in San Diego's Normal Heights. Bartz has tattooed since 2005 and holds a 2004 graphic design degree from the Academy of Art in San Francisco, a formal training that informs his approach to composition, linework, and color theory across multiple tattoo styles. The shop specializes in custom tattoo design—realism work has become a primary focus, alongside traditional, neo-traditional, and illustrative pieces built from original drawings rather than flash sheets. The Adams Avenue corridor's body-art scene includes Full Circle Tattoo further east, and the two shops draw from overlapping client pools who move between artists for different style specialties. Black Anvil's roster includes artists RJ Grijalva, Brent Hefner, and Michael Zgoda, each covering different style ranges that expand the shop's portfolio beyond Bartz's personal specialties. Walk-in appointments are accepted alongside scheduled bookings, and the Adams Avenue storefront sits in the heart of Normal Heights' commercial corridor in the 92116 ZIP, surrounded by the independent restaurants, bars, and retail that define the avenue's character. Bartz's fine art practice runs parallel to the tattoo work—paintings and illustrations influenced by Drew Struzan, Mark Ryden, and Alphonse Mucha appear on the studio walls and sell through the shop. Post-tattoo crowds from Black Anvil spill into The Ould Sod down the avenue, where the Irish pub's patio is a standing after-session gathering point for Adams Avenue regulars. The shop's Normal Heights location puts it on the same Adams Avenue stretch that hosts the annual Adams Avenue Street Fair each fall, when thousands of attendees walk past the storefront.