In 1997 David Shrigley was one of a number of artists commissioned by the Wacker Kunst artists collective in Darmstadt, near Frankfurt, to make public art works in the city. Shrigley hand-drew one of two different ‘posters’ on each of the 30 trams which run in Darmstadt, so that every passenger would be confronted by a work on every journey they made. Many passengers were curious and asked the drivers about the meaning behind the portraits. Shrigley is best known for his caustic and satirical drawings like the ones in this project, which make crude and humorous observations on everyday life. He studied Environmental Art at Glasgow School of Art and has since maintained an interest in working outside the traditional gallery setting with subtle and light-hearted interventions like this one.