Graffiti Analysis is an extensive ongoing study into the motion of graffiti. Motion data is recorded, analyzed and archived in a free and open database, 000000book.com. All tags created in GA are saved as Graffiti Markup Language (GML) files, a new digital standard. The project aims to build the world's largest archive of graffiti motion and bring together two seemingly disparate communities that share an interest in hacking systems, whether found in code or in the city.