Minister for Arts, Heritage and the Gaeltacht, Jimmy Deenihan, will formally unveil the faces of four Irish writers on plaques set into the pavement outside the Palace Bar, Fleet Street. The four bronze plaques are Flann O'Brien,Brendan Behan, Patrick Kavanagh and Con Houlihan. The plaques commemorate the centenary of the birth of Flann O'Brien and acknowledge Dublin as a UNESCO City of Literature.The plaques are by artist Jarlath Daly.