Lonely Planet: Yosemite National Park (Book) by Kurt Wolff, et al

The authors of this book are Kurt Wolff, David Lukas and Amy Marr. Coverage of the entire park, plus lesser-known neighboring highlights. Mostly covered are hiking options (both day- and multi-day ones), but there's info on biking, rafting, skiing, snowshoeing, and rafting, too. In-depth history, geology and ecosystem chapters written by known experts. Maps show every corner of the park. Includes a special focus on family travel, with short and long-stay itineraries. 288 pages.