Lonely Planet, the independent travel publisher, will begin a whirlwind, grand scale tour of independent bookstores on Saturday, May 8. A Lonely Planet RV, decked out with large side panels advertising the "Lonely Planet 2004 Independent Bookstore Road Trip," will tote Lonely Planet staff and, intermittently, trade press reporters, to visit over 100 independent bookstores throughout the eastern half of the U.S.