In order to develop effective strategies for primate conservation, it is essential that we have a thorough understanding of their taxonomy, distribution and ecology, and that the data be organised in a way that is readily available and useable to a new generation of researchers and conservationists. This book represents a major new step in this direction, providing a thorough overview of ongoing research, new taxonomic information, reviews of what is known of distribution, status, and threats, and a look across the borders to neighboring countries such as China, Laos and Cambodia to get a better understanding of regional distribution patterns and conservation issues. All of this provides the basis for a solid conservation strategy, a process that the authors of this landmark book begin to undertake.