Reilly, P. (in press) Ethical dilemmas in researching sousveillance on YouTube. In James Dennis, J.,  Harmer, Reilly, P., McLoughlin, L., & Southern, R .(Eds.). Research Methods in Online Political Communication: After the APIcalypse. Routledge.

Reilly, P., Salojärvi, V., & Russell, C. Introduction. In P. Reilly., V.Salojärvi., & C.Russell. (Eds.). Conflict Memory and Media:Multidisciplinary perspectives. Palgrave Macmillan.

Reilly, P. (in press) Life During Wartime: Remembering the Northern Irish Troubles through historical photographs on Instagram. In  Reilly, P., Salojärvi, V., & Russell, C. (eds). Conflict Memory and Media:Multidisciplinary perspectives. Palgrave Macmillan.

Happer, C., & Reilly, P. (in press) Conclusion. In  C. Happer., P. Reilly &.A. Eldridge. (Eds.). Bad news on the cost of living crisis. Palgrave Pivot.

Eldridge, A., de Nadal Alsina, L., Reilly, P., & Sun, Y. (in press). Thematic analysis: explanations, sources and evidence of the COLC. In  C. Happer., P. Reilly &.A. Eldridge. (Eds.). Bad news on the cost of living crisis. Palgrave Pivot.

Reilly, P. (2025). Belief Echoes. In A.Nai, A., M. Grömping & D. Wirz. (Eds.). Encyclopedia of Political Communication (pp.118-121). Edward Elgar Publishing. [Accepted version].

Reilly, P. and Salojärvi, V. (2023). Introduction, In Reilly, P. and Salojärvi, V. (eds) De)constructing societal threats during times of deep mediatization, (pp.1-5). Routledge.

Ashwell, C., & Reilly, P. (2023). Resisting (everyday) racism on social media: Analysing responses to the  2018 Mary Beard Twitterstorm. In S. Poulakidakos,.,A. Veneti., & M. Rovisco. (Eds.). Social Movements and Everyday Acts of Resistance: Solidarity in a Changing World. (pp.156-173).Routledge

Reilly, P. (2023) Watching the Watchers: Sousveillance as a political response to surveillance societies. In A. Veneti,., & D. Lilleker,(Eds.). Research Handbook on Visual Politics. (pp.395-406) Edward Elgar Publishing..[pdf]

Veneti, A., Reilly, P., & Lilleker, D. (2022). The symbolic importance of place in photojournalist accounts of the anti-austerity protests in Greece. In J. Morrison., J. Birks & M. Berry (Eds.) Routledge Companion to Political Journalism (pp.394-403).Routledge.

Zhao, X. and Reilly, P. (2021) Breaking down barriers? ICTs, international students and intercultural communication within UK Higher Education institutions. In C. Brassier-Rodrigues & P. Brasier (Eds.). A collection of pedagogical approaches aimed at developing students’ intercultural sensitivity by internationalization at home (pp.157-278). Peter Lang. [pdf]

Petersen, L., Fallou, L., Reilly, P., & Serafinelli, E. (2021) Expectations vs. Practice in Critical Infrastructure Operator Crisis Communication: Lessons Learnt from Portugal, France, Norway and Sweden. In J.W. Beard (ed) Information Technology Applications for Crisis Response and Management (pp. 24-50).IGI Global.

Reilly, P. (2020). Social media and sousveillance.In L. Pérez-González., B. Blaagaard & M. Baker (eds) Routledge Encyclopedia of Citizen Media (pp.390-394). Routledge. [pdf]

Reilly, P. (2020). Digital media and disinformation in a deeply divided society: Reflections from ‘post-conflict’ Northern Ireland. In E. Kużelewska., G.Terzis., D.Trottier & D. Kloza (Eds.). Disinformation and Digital Media as a Challenge for Democracy, European Integration and Democracy Series, Volume 6, (pp. 179-200) Intersentia. [pdf]

Petersen, L., Fallou, L., Reilly, P., & Serafinelli, E. (2019). Public expectations of social media use by critical infrastructure operators during crises: lessons learned from France. In: Y. Murayama., D. Velev & P. Zlateva. (Eds.). Information Technology in Disaster Risk Reduction. ITDRR 2017. IFIP Advances in Information and Communication Technology, 516 (pp.77-189). Springer.

Gordon, F and Reilly, P. (2018). Digital weapons in a post-conflict society. In J.  Mair., R. Tait., R. Clark., R. Snoddy & N. Fowler (Eds.). Anti-social media (pp.29-34). Abramis. [pdf]

Reilly, P. (2017) Tweeting for Peace? Twitter and the 2014 Ardoyne parade dispute, in Reilly, P., Veneti, A and Atanasova, D. (eds) (2016) Politics, Protest, Emotion: Interdisciplinary Perspectives: A Book of Blogs, Digital Societies Group, University of Sheffield.

Claydon, E.A, Reilly, P., & Gunter, B (2015). Dis/Enablement? An analysis of the representation of impairment and disability on British terrestrial television pre- and post- the Paralympics. In D.Jackson., C. Hodges., M. Molesworth & R. Scullion (Eds.). Reframing disability? Media, (dis)empowerment and voice in the 2012 Paralympics (pp.37-65). Routledge.

Reilly, P. (2014) The Battle of Stokes Croft on YouTube: The Ethical Challenges associated with the study of online comments, A Book of Blogs- blurring the boundaries, using social media for social research, New Social Media, New Social Science, NatCen Social Research & Sage.

Reilly, P. (2013). Ourselves Alone (but making connections): The social media strategies of Sinn Fein. In P. Nixon., R. Rawal & D. Mercea. (Eds.)Chasing The Promise of Internet Politics(pp.157-168).Routledge. [pdf]

Reilly, P. (2008). ‘Googling Terrorists: Are Northern Irish terrorists visible on Internet search engines?’ In A. Spink & M. Zimmer (Eds.) Search Engines: Interdisciplinary Perspectives (pp.151-177). Springer.[pdf]

Reilly, P. (2006). Civil Society, the Internet and Terrorism: case studies from Northern Ireland. In S. Oates., D. Owen & R.K. Gibson (Eds.) The Internet and Politics: Citizens, voters and activists(pp.118 – 135).Routledge.[pdf]