A terrific, thought-provoking portrait of Planet Earth -- as documented in nearly 200 spectacular and often witty color photographs. Third edition. Sponsored by UNESCO, the French aerial photographer Yann Arthus-Bertrand journeyed across five continents by helicopter and airplane to produce this handsome collection. He includes striking landscapes, wildlife, geography and people from both far above and nearly on the ground.  (GEN159, $55.00)