I always buy Insight Guides before going on holiday. There's a perfect mix of history/culture/practical advice, and above all.... plenty of pictures. I like to get ideas for where to go before going away and the pictures are a great introduction to the area. We just visited Northern Portugal, and as always the book covered the main towns & cities, and the best of things to do in each. Descriptions and maps were spot on again. It's the perfect travel guide series for me.