Painting rocks with Posca markers has become super popular

and once it's set

Enhances color vibrancy

To prevent paint from drying in the tube

And as the name says it's focusing on the Danish s-train scene at that time

whitebook 01 its a circle HM Painting rocks with Posca markersWith WHITEBOOK 01 'IT'S A CIRCLE', photographer and graffiti artist Mark Grokenberger presents an impressive documentation of graffiti culture in New York. Between 2019 and 2025, he and friends from all over Europe traveled to the birthplace of modern train writing ten times to witness the creation of wholetrains and wholecars up close and capture them photographically. The result is a visually stunning book that not only presents impressive images