These top 10 Eyewitness guide books are terrific. They are rugged, compact thus easily portable with great maps. Lots of info for its size. Also reasonable in price. They have them for a number of cities abroad.

Excellent source of information. Well organized book with maps for each section. Fold out maps on each cover with a pull-out in back are all very helpful. It came in especially handy while planning the trip but was also useful while there. Small enough to fit in your jacket or bag.