RIO , originally from Dortmund, Germany, is a respected figure in European graffiti, active since the 1990s. Coming from the tradition of style writing , he became known for rigorous work focused on the construction of letters, the dynamics of forms and technical precision.

His approach is distinguished by a profound reflection on the structure of lettering. Through complex compositions, RIO explores the connections, tensions, and internal balances of letters, developing a style that is both technical and fluid. His work is rooted in both on-the-ground practice—walls and trains—and more analytical graphic research.

He is also the author of *The Process of Writing*, a seminal work on graffiti methodology and the evolution of the style. In this book, Rio deconstructs the creative process of writing, highlighting the fundamental principles of composition, rhythm, and formal coherence.

At the crossroads of practice and theory, RIO embodies a demanding vision of graffiti: a discipline where stylistic experimentation is based on a deep understanding of letters and their construction.