| The Irish Times: A History M O'Brien Four Courts Press, 2008 | 98 | 2008 |
| From Boom to Bust: a post-Celtic Tiger analysis of the norms, values and roles of Irish financial journalists D Fahy, M O’Brien, P Valerio Irish Communications Review 12, 5-20, 2010 | 75* | 2010 |
| De Valera, Fianna Fáil and the Irish Press: The Truth in the News? M O'Brien Irish Academic Press, 2001 | 69* | 2001 |
| Periodicals and Journalism in Twentieth-Century Ireland M O'Brien, FM Larkin Four Courts Press, 2014 | 42* | 2014 |
| Independent Newspapers: A History M O'Brien, K Rafter Four Courts Press, 2012 | 33* | 2012 |
| Political Censorship and the Democratic State: The Irish Broadcasting Ban MP Corcoran, M O'Brien Four Courts Press, 2005 | 27* | 2005 |
| The State in Transition: Essays in Honour of John Horgan K Rafter, M O'Brien New Island, 2015 | 24* | 2015 |
| The Fourth Estate: Journalism in Twentieth-Century Ireland M O'Brien Manchester University Press, 2017 | 19 | 2017 |
| Political Communication in the Republic of Ireland M O'Brien, D Ó Beacháin Liverpool University Press, 2014 | 18* | 2014 |
| Journalism in Ireland: The evolution of a discipline M O’Brien Irish journalism before independence, 2011 | 18* | 2011 |
| ‘In war-torn Spain’: The politics of Irish press coverage of the Spanish civil war M O’Brien Media, War & Conflict 10 (3), 345-358, 2017 | 11 | 2017 |
| The Irish press, politicians and the Celtic Tiger Economy M O'Brien Soothsayers of Doom: The Media and the Financial Crisis, 75-86, 2014 | 9 | 2014 |
| Politics, Culture, and the Irish American Press: 1784–1963 D Mulhall, DW Bulla, HJ Keeley, ST Engel, I Kenneally, NMK Dupont, ... Syracuse University Press, 2021 | 5 | 2021 |
| Policing the press: censorship, family planning, and the press in Ireland, 1929–67 M O’Brien Irish Studies Review 29 (1), 15-30, 2021 | 5 | 2021 |
| Journalism and emerging professionalism in Ireland M O'Brien Journalism Practice 10 (1), 109-122, 2016 | 5 | 2016 |
| Selling fear? The changing face of crime reporting in Ireland M O'Brien Mapping Irish Media, 112-127, 2007 | 5 | 2007 |
| In the public interest? Political sex scandals and the media in Ireland M O’Brien Irish Political Studies 37 (1), 22-42, 2021 | 3 | 2021 |
| Periodicals and Journalism in Twentieth-century Ireland: A Variety of Voices M O'Brien, FM Larkin Four Courts Press, 2021 | 3 | 2021 |
| The court of public opinion M O'Brien Ireland of the Illusions, 195-205, 2010 | 3 | 2010 |
| Selling soccer M O'Brien Place & Non-Place: The Reconfiguration of Ireland, 54-64, 2004 | 3 | 2004 |
Kevin RafterSchool of Communications, Dublin City UniversityVerified email at dcu.ie
