His subjects are often the problems of outsiders and peer pressure as well as the formation and effects of prejudice.
But Klusen has also written enchanting fairy-tale plays, poems, narrations, crime stories and revised versions of classical children's literature.
[2] Peter Klusen was a permanent co-worker of the German annual Muschelhaufen (edited by Erik Martin) from 1994 - 2008.
Klusen translated Mark Twain's novel The Prince and the Pauper (Prinz und Bettelknabe, 1996) and also made it into a play that was first performed at the Schauspielhaus Bochum (Theater unter Tage) in 2003.
[5] His cartoons are found in journals, calendars and the German satirical magazine Eulenspiegel.