Friday, June 5 from 1:00 - 3:00, Mike Osborne will be on hand to sign copies of his new book, Granite, Water, and Light:The Waterfalls of Yosemite Valley. This new book has just been published jointly by YA and Heyday Books. At 87 pages and with over 70 color photographs, it answers any questions you may have about the Valley's waterfalls.