Yann Mathé aka L.E.T. (Les Enfants Terribles) is of French descent and lives in Düsseldorf. 

L.E.T. sprays and sticks on walls, electrical boxes, bridge piers, site fences, old doors and more. His stencils and paste-ups are often cryptic. They show children or adults with sometimes funny, sometimes provocative messages. 

The street art motifs have meanwhile also found their way into German galleries, where you can buy them – captured on canvas, cardboard or wood – and then hang them up at home.