I've visited 44 countries, mostly on a budget, and Lonely Planet is THE only book I would consider using. It's throrough, comprehensive and concise. It's especially geared for the budget/adventure traveler, though it would also prove useful to anyone on a tour or cruise. Lonely Planet is packed with maps, useful phrases, history lessons, tips on culture & conduct, addresses and descriptions of museums, hotels, restaurants - everything you need. Though Lonely Planet leans towards those of us who travel in hostels and budget hotels, it also gives a good description of hotels and restaurants for those who wish to travel in a more luxurious manner. There are other good travel books out there - Eyewitness Guides, etc - that have a lot of beautiful photos - but unless you're traveling with a steamer trunk, these are of little use because they lack the information you'll need while on the road. Look at the others for inspiration before you go, if you'd like, but pack your Lonely Planet. I'd never travel without it.