Ed Ruscha.

'Art has to be something that makes you scratch your head'

Ed Ruscha is an American pop artist, who recently created the front of the limited edition POP magazine for this autumn/winter. He likes to work with words and typography in his pieces. He currently has his work in two exhibitions, Hayward and Gagosian Gallery, London. An interview about his work is also featured in POP.

http://www.southbankcentre.co.uk/minisite/ed-ruscha-fifty-years-of-painting/