How and Nosm (Raoul and Davide Perre) are identical twin brothers known for their large scale graffiti based murals that adorn city walls around the world. The red, black, and white-based imagery is instantly recognizable and commands attention through the impressive size and the intricate detail. Initially the color palette was limited for practicality but instead has become a distinct calling card and formal choice that has allowed these artists to push spray paint to a new level.