Guerrilla Art, a form of street art evolved from the graffiti art culture in the United States. A form of Public Art, it is not “moveable” but more “environmental” in that the surface used to create the art work is an integral part of the artwork. Street artists encompass many media and techniques such as wheatpasting, stickers, stencil graffiti and mosaic tiling. The most important development in the movement and the reason for its 'guerrilla' tag is the adoption of guerrilla marketing techniques over traditional artistic methods. Many guerrilla artists hijack major branding for their own publicity and identity, often at odds with the brand itself.