We're avid travelers and always take Lonely Planet guides with us -- they're normally very comprehensive and helpful. The new 4th edition of the Switzerland guide proved a big disappointment, though, on our recent trip. For some reason this is an unusually slim LP volume, so the depth of coverage for which LP is famous is lacking. We went to numerous delightful towns, villages, and museums that didn't rate so much as a mention. The city maps are also poor; many of the streets are unnamed, which makes the maps difficult to use for navigation. Finally, some of the authors' choices seem almost bizarre. The first boxed "Highlight" listed for the beautiful international city of Geneva, for example, is a particle physics laboratory(!) with the world's largest machine. It's probably fascinating (we didn't visit), but does it really rank with the historic European headquarters of the UN, which didn't make the Highlights box at all, or the superb International Red Cross Museum? We came to rely almost exclusively on the excellent Rough Guide to Switzerland, which at 550 pages -- compared to 335 for Lonely Planet -- is much more thorough and useful.