O'Reilly, Karen. 2002. Britain in Europe/The British in Spain. Exploring Britain’s changing relationship to the other. Nations and Nationalism, 8(2), pp. 179-193. ISSN 1354-5078 [Article]

Benson, Michaela and O'Reilly, Karen. 2018. Lifestyle migration and colonial traces in Malaysia and Panama. London: Palgrave Macmillan. ISBN 9781137511577 [Book]

O'Reilly, Karen. 2020. Brexit and the British in Spain. Project Report. Goldsmiths, University of London, London. [Report]

Collins, Katherine and O'Reilly, Karen. 2018. What does Freedom of Movement mean to British citizens living in the EU27? Freedom, mobility and the experience of loss. Project Report. Goldsmiths, University of London, London. [Report]

Danby, Mike and O'Reilly, Karen. 2018. What does Brexit mean for UK citizens living in the EU27? Talking Brexit with 18-35 year old UK citizens in southern Spain. Project Report. Goldsmiths, University of London, London. [Report]

O'Reilly, Karen. 2018. What does Brexit mean for UK citizens living in the EU27? Talking Brexit with the British in Spain II. Project Report. Goldsmiths, University of London, London. [Report]

Benson, Michaela; O'Reilly, Karen and Collins, Katherine. 2018. What does Brexit mean for UK citizens living in the EU27? Talking citizens' rights with UK citizens across the EU27. Project Report. Goldsmiths, University of London, London. [Report]

Benton, Meghan; Ahad, Aliyyah; Benson, Michaela; Collins, Katherine; McCarthy, Helen and O'Reilly, Karen. 2018. Next Steps: Implementing a Brexit Deal for UK Citizens Living in the EU-27. Project Report. Migration Policy Institute Europe, Brussels. [Report]

O'Reilly, Karen. 2017. What does Brexit mean for British citizens living in the EU27? Talking Brexit with the British in Spain. Project Report. Goldsmiths, University of London, London. [Report]