The Rule of the Land: Walking Ireland’s Border (Faber & Faber, 2017) was widely discussed in the media and selected as a BBC Radio 4 Book of the Week. Garrett frequently contributes to the press, the BBC and other broadcasters in Europe and beyond. He has presented many papers to conferences, primarily on cartography and writing about place. He curates a touring exhibition called Mapping Alternative Ulster. He has also published three young adult novels with Simon & Schuster.

Garrett’s research has a prominent place in international media discussions around Brexit, nationalism and landscape. It has helped frame those discussions in the wider context of the border’s past and lived present. The Rule of the Land has been abridged by BBC Radio 4 while press coverage has included The Guardian, Der Spiegel, and The New York Times. Reviews from journalists and the public indicate that Garrett’s research has shaped views on Ireland’s border while audience testimonials reveal the transformative effect of the Mapping Alternative Ulster exhibition.