His book, Cool for Qat - a Yemeni Journey has been published by Mainstream, and his most recent play RIOT was staged by the Customs House Theatre, South Shields. His book Off The Wall - The Journey of a Play was published in 2006 by Five Leaves Press. Peter Mortimer spent the winter of 2001 on Lindisfarne to write his book, 100 Days on Holy Island - a Writer’s Exile (Mainstream).