Watson has written seven novels: Bullet Points (2004), A Light-Hearted Look At Murder (2007), Eleven (2011), The Knot (2012), Hotel Alpha (2015), The Place That Didn't Exist (2016), and Contacts (2020). In addition, he has written the non-fiction book Crap at the Environment (2008), following his own efforts to halve his carbon footprint over the course of one year. In 2015, he released a graphic novel, Dan and Sam, with illustrations by Oliver Harud.
