What travel guide books do you like? [View all]

I had a Frommer's for Iceland a few years ago. Lots of detail but no pictures. Just print in black and red.

So for Germany I got "Lonely Planet Discover Germany". Did have color pictures and information about most things, but not very much detail. I would have entirely missed the best art museum had it not been for a friend of my daughter's who recommended it, because Lonely Planet said nothing about it! (The museum was Lenbachaus, in case you are interested in The Blue Rider group in particular.)

So--for the next trip I wonder what guide to use. It may be to Spain or Italy or Scandinavia. I'll go back to Frommer's maybe. I prefer a guide that gives historical information too.