Jacob Kimvall is an art critic, art historian, and amateur graffiti writer, based in Stockholm. He received his PhD in art history with the dissertation The G-Word: Virtuosity and Violation, Negotiating and Transforming Graffiti (2014), which examined the historiography of graffiti and suggests that this subcultural phenomenon should be understood as jointly produced by subcultural and institutional agents.
Kimvall was a part of the graffiti-scene in the 1980s and the first half of the 1990s. In 1992 he co-founded the international magazine Underground Productions (UP). He is currently working as Senior Lecturer in Art History at the Department of Culture and Aesthetics, Stockholm University. He is also an art critic, and a member of the board of Swedish Art Critics Association, the Swedish section of AICA.