He is known in particular for his three-volume study, A Treatise on Northern Ireland. He is the author, co-author and co-editor of more than 30 books, and the author or co-author of hundreds of peer-reviewed articles and book chapters. O’Leary is the Lauder Professor of Political Science at the University of Pennsylvania. This Saturday’s Irish Times Eason book offer is the bestselling Beautiful World Where Are You by Sally Rooney, which you can buy with your newspaper for just €4.99, a saving of €5. Reviews are Aidan Dunne on Catholica, the Visual History of Catholicism by Susanna Ivanic John Quinn on Boy Friends by Michael Pedersen Claire Hennessy on the best new YA fiction Lucy Sweeney Byrne on two Peig Sayers reissues Helen Cullen on After Sappho by Selby Wynn Schwartz Sinead O’Shea on Forgiveness: An Exploration by Marina Cantacuzino Tanvi Roberts on Black and Female: Essays by Tsitsi Dangarembga Philip O’Ceallaigh on Vladimir Sorokin’s Telluria and Their Four Hearts Oliver Farry on The Edge of the Plain by James Crawford Paschal Donohoe on The Poets’ Guide to Economics by John Ramsden and Sarah Gilmartin on Eden by Jim Crace. And Bernadette Fallon retraces James Joyce’s footsteps on holiday in Zurich.

There are obituaries of publisher Michael O’Brien and author Joan Lingard. In this Saturday’s Irish Times, Anne Enright writes about Nuala O’Faolain as her second memoir, Almost There, is reissued by New Island.

You peig sayers singing