JR owns the biggest art gallery on the planet – he exhibits for free in the streets of the world, catching the attention of ordinary people as they pass by. His career as an artist began after finding a camera in the Paris subway at the age of 18. After completing a tour of European street art, tracking people who communicate messages via walls, he went on to work on the vertical limits, documenting people and life from the underground. In 2010 he completed The Wrinkles of the City – Shanghai, the second edition of the project, after Los Sucros de la Ciudad (Cartagena, Spain) in 2009, and the first to be published as a book.