He has been working in contemporary art since the early 90s. Always alongside his father Marcello Mariani, he spends his years of training immersed in visual and literary culture.
He regularly attends illustrious interpreters of informal and conceptual art and participates in the conception and organization of exhibitions and events, collaborating with many protagonists of contemporary European culture (Luigi Boille, Vasco Bendini, Tullio Catalano, Evgenij Evtušenko, Sergio Zavoli, Gianni Berengo Gardin, Vittorio Sgarbi, Oliviero La Stella, Milena Vukotic, Giorgio Di Genova, Gabriele Simongini, Silvia Pegoraro, Alessandro Nicosia and others).
He currently holds the role of manager and artistic director of Studio Mariani Gallery and works as a consultant, art advisor, and dealer for institutions, museums and private collectors.