Languy and Emmanuel de Merode, director of the park, bring together dozens of expert contributors for this wideranging overview of the park, its wildlife, geology and conservation. With 240 color photographs, 60 maps and 45 graphs. bordering Volcanoes National Park in Rwanda and Rwenzori Mountains National Park in Uganda, Virunga is home to mouontain gorillas, okapis, equatorial glaciers and the world's largest active volcanoes.  (CAF45, $52.50)