Guide Book Sleep Code

I believe this is explained at the beginning of all the guide books. The prices for S, D, T, or Q are 1, 2, 3, or 4 people respectively, in other words the total price of the room.

@ Lane: Thank you for that information. If it is stated in the 2016 guide book for Ireland, I have not spotted it. And I have read nearly all of it up to the part on Northern Ireland (beginning on page 361 and describing a part of Ireland I will not be visiting). Wherever accommodations are listed, there does appear a text/graphics box describing the "Sleep Code" and furnishing the other information you included. But, in none of those information boxes is it stated whether the quoted price is per person or per room. I assume that, if the usual manner of presenting prices for accommodations in other Rick Steves guides is per room, that it would also be the way it is presented in the Ireland guide. Since he recommends booking directly with the provider, I would obviously find out when I did that. But, for general planning purposes, it is nice to be able to get as much a handle on expenses as possible before deciding whether a trip to Ireland is even feasible. Again, thanks for your help.

The extra section that Lane mentions is now in the back of the books (p. 507 for Ireland). Yes, they are the cost for the whole room. But you cannot add more people than specified. You'll notice that a single person tends to pay the most; not half the price of a double room (solo traveler rant).