Travel Guide Books (i.e. Frommer's, Lonely Planet, etc. ...)?

Does anyone know if there are travel guide books featuring all of the British Isles? I'm looking for a book with England, Scotland, Ireland, and Wales, but so far I have not found any books with all 4 countries. If someone knows of a book or a brand of books that would have this kind of travel guide, let me know! Thanks.

This on line one covers Britain and Northern Ireland, but not the Republic of Ireland...it's not part of the United Kingdom.

There's lots of useful info and maybe they have a book available to buy as well as this on line guide...

Edit
Just had a quick look on Google and there is this one which covers Ireland as a whole...
http://www.amazon.com/Eyewitness-Travel-Planner-British-Isles/dp/0789447983