Before going I did a lot of background reading, but decided to take just one guide. I chose this and am very glad I did. It was quite accurate, easy to use, and fun to read during long waits for rural busses!Another good Lonely Planet guide As with many other countries, Lonely Planet has a very good guide for Ireland. Every city, town, and village are covered in this book. No matter where we were, we could always find something on the location. The index is wonderfully useful for that purpose. There are also some suggested itineraries. My only criticism is that LP seems to have missed many of the excellent guesthouses in Ireland. I would think this should be LP's speciality, so found this aspect disappointing. Still, I would not leave home without LP, on this trip or any other for that matter. Even if you don't want to go the budget route --something many associate with LP -- you will gain from the descriptions of places, restaurant and pub recommendations, maps, history, and more. And despite its reputation, LP does list high-end hotels, castles, and the like. I haven't found a single excellent guide for Ireland, so I suggest doing some internet research before leaving and taking LP and at least one other guide (I like the Blue Guide series).
Bon voyage!!