Book excerpt: Diana Lange has solved the mysteries of six panoramic maps of 19th c. Tibet and the Himalayas, known as the British Library's Wise Collection. The result is both a spectacular illustrated ethnographic atlas and a unique compendium of knowledge concerning the mid-19th century Tibetan world, as well as a remarkable account of an academic journey of discovery.This large format book is lavishly illustrated in colour and includes four separate large foldout maps.