Glenn’s ten novels to date are: Burning Your Own (1988), a Rooney Prize and Betty Trask first novel prize-winner; Fat Lad(1992); Black Night at Big Thunder Mountain (1995), The International (1999); Number 5 (2003), That Which Was (2004), The Third Party (2007); The Mill For Grinding Old People Young, the inaugural One City One Book choice for Belfast (2012); The Rest Just Follows (2014); and Gull (2016).

He has also published two essay collections, Lapsed Protestant (2006) and Here’s Me Here (2014), and the family memoir, Once upon a Hill: Love in Troubled Times (2009).

Short stories and plays have been broadcast on BBC Radio 3 and Radio 4, and he has also presented television documentaries on literary and cultural subjects. His feature film Good Vibrations (co-written with Colin Carberry) was released in 2013. In 2009 he was awarded a Lannan Literary Fellowship.