Growing up where I did, this book was always a source of fascination in my household. My copy originally belonged to my father, and then passed to my eager hands when I was 15 years old -- before, I'd had to read sneaky passages of it whenever I was in my parents' room for some rare, legitimate reason. At 15 years old I was finally deemed old enough and mature enough to be able to read the book with its context and not just the "up the 'RA" kind of attitude that I had been exposed to in school, and since I came into possession of this book I must have read it maybe 10-12 times. My copy is damn near falling apart. Still, it's just as fascinating to read now as it was the first time.
I've done a lot of reading about the Troubles and the IRA specifically; from my teens it's been a passionate area of study for me. Anything from 1916 onwards, I was all over; I'd read everything I got my hands on. Nothing has grabbed my attention like this book, and nothing has ever quite held up to it. This book is absolutely masterfully crafted: the research, the writing, the amount of quotations and the breadth of people who were consulted to write it. It's one of those rare books written on this subject that truly doesn't seem to have an agenda. Both sides are equally represented, no details are glossed over or excused, and where there isn't neutrality there's a profound empathy that comes across regardless of what's being discussed. That's not easy to do even when presenting two viewpoints or opinions with fictional characters; how Harnden managed it with real people in a real situation is beyond me. It's always been something I deeply appreciated about this book, and considering I read it at such an impressionable age, this attitude has stuck with me even into my own historical research.
If I had to pick a top ten most influential books from growing up, this would undoubtedly be on the list. It's still one of the best examples of research I've ever read, being both thorough and incredibly easy to follow. This is about something I grew up with, but I can safely say that somebody with absolutely no knowledge of the situation past "the English invaded Ireland at some point and people got mad about it" could read this and have no trouble at all -- and not to mention a fairly comprehensive knowledge when they came out of it. This is an incredibly important piece of work, and this most recent reread has proven to me that it's aged impeccably well, too.