I was driving in rural Ireland in late September 2003 and was very interested in locating sites sacred to pre-Christian people. The Insight Guide to Ireland had a few mentions of sites of interest. However, to my luck that I discovered this book (the last copy) in a small bookstore in Westport, County Mayo.
What a find! The book was *exactly* what I was looking for, and was most fortunate that I discovered it early on, as I was going to spend at least one more week in the country.
The author's attention to historical detail as well as her fine directions to finding the sites are most noteworthy. What I also liked was her bias-free and academic approach to the subject. Christians, as well as Pagans like myself, will find the book a treasure trove of information. Other reviewers have extolled the book's other virtues, so I will go no further, except to say--if you're interested in Ireland's prehistory, folklore and legends, this book is a must have. [I paid thirty Euros (approximately $35) and Amazon sells it for half that price! But I would pay 35 Euros again if I had to--it's THAT good.]
I hope you will be as fortunate as I was to be actually in a car with this excellent reference in your lap, deciding which of the many holy wells, towers, stone circles, castles, cairns, fairy trees, fairy mounds, and other places that you'll visit next!