Piotr Marcinowicz is a font designer from Poland, co-founder of the GRIN3 group. He has been passionate about fonts since childhood. He has designed t-shirts, posters and graffiti.
In the beginning of 2000 he started designing fonts which he published on the internet as freeware. He was known as Gulash (GSH). In 2010 he tightened collaboration with Bartek Nowak. As GRIN3 they design commercial fonts. In his day-to-day job, Piotr provides image management in areas of web presence and promotion.