The 1972 Bloody Sunday massacre of 14 civilians by the British Army in the Bogside neighborhood of Derry sparked artistic reactions from almost the minute the news hit the airwaves. Paul McCartney famously recorded "Give Ireland Back to the Irish" only two days after the incident (it was quickly banned), and of course, "Sunday Bloody Sunday" is one of U2's most U2-y songs. The incident was also the subject of a fantastic film by Paul Greengrass, but the most affecting of all these tributes might be the series of murals known as the People's Gallery painted on the sides of houses in the Bogside neighborhood itself.
This book is an account of the Troubles and the subsequent painting of the murals, written by the three Bogside Artists. It's a quick and varied read, livened up by William Kelly's hilariously cranky views on politics, modern society and the state of the art world. However, if you get a chance, it is well worth seeing the murals in person.