Guilherme Petreca was blown away when he first encountered hardcore and punk rock through the soundtrack of Tony Hawk's Pro Skater 2 and a CD that came with an issue of Surf Attack magazine (back when magazines still came with CDs). He played in garage bands in his youth but mostly preferred to channel that energy into making comics instead of his questionable musical talent. He is the author of Carnaval de Meus Demônios (2015) published by Balão Editorial, a finalist for the Jabuti Award, and Ye (2016) published by Veneta, which won the 14th Japan International Manga Awards and the HQ Mix Trophy. He published Ogiva (2020) with writer Bruno Zago, which was adapted into a live-action film, and Shamisen (2021) and Kabuki (2025) with writer Tiago Minamisawa. He is also an art director, concept artist, and storyboard artist for TV and movies. Superpunk, initially published as a zine in 2017, was inspired by his preadolescence, when he walked around with his Walkman and believed in invisible monsters.

"Every superhero has a unique origin story, but few of them involve listening to Grandpa's punk rock cassette tapes backwards to gain superpowers and the ability to see invisible monsters. Enter ­Superpunk: a 13-year-old girl named Violeta. Alongside her best friend Alan, Superpunk fights creatures no one else can see, all to generate content for their podcast. But when the magical cassette player is taken by a teacher and the monster gets out, they'll need to get creative to save the day. The premise is a blast, mixing superhero and supernatural story elements. Petreca and Santana bring their passion for music and skateboarding culture to the forefront, paying homage to 1990s gaming soundtracks and the rebellious nature of the time. The fast pace meshes well with the speedy punk aspect, and track listings to punk songs that would work well as background music during certain scenes are dispersed throughout the panels for readers that are musically inclined. Violeta is portrayed with light skin; Alan has dark brown skin. VERDICT Packed with punk rock and monster fights, this graphic novel's fun vibes will be rocking right off middle grade shelves."-- "School Library Journal, starred review"

"A high-energy, punk-infused paranormal graphic novel adventure brimming with riot grrrl spirit. [...] As the protagonists skate, rock out, and fight bureaucratic monsters, their adventure manifests in a joyful celebration of chaos, individuality, and the power of chosen family."-- "Publishers Weekly"

"...irresistible. A fun, fast, very appealing punk-rock ride."-- "Booklist"