Winner of a 2009 Outstanding Academic Title (OAT) award! Trees continue to maintain a unique significance in the social, ecological and economic systems of the world - as large, long-lived perennials covering 30% of land on Earth; their very nature dictates their importance. An understanding of forest genetics is essential for providing insight into the evolution, conservation, management and sustainability of both natural and managed forests. Providing a comprehensive introduction to the principles of genetics as important to forest trees, this text integrates the varied sub-disciplines of genetics and their applications in gene conservation, tree improvement and biotechnology. Topics discussed include genetic variation in natural forest trees, the application of genetics in tree improvement and breeding programs, and genomic sciences and molecular technologies.