The Endangered Species Act at Thirty is a comprehensive, multidisciplinary review of issues surrounding the Endangered Species Act, with a specific focus on the act's actual implementation record over the past thirty years. The result of a unique, multi-year collaboration among stakeholder groups from across the political spectrum, the two volumes offer a dispassionate consideration of a highly polarized topic. Renewing the Conservation Promise, Volume 1, puts the reader in a better position to make informed decisions about future directions in biodiversity conservation by elevating the policy debate from its current state of divisive polemics to a more-constructive analysis. It helps the reader understand how the Endangered Species Act has been implemented, the consequences of that implementation, and how the act could be changed to better serve the needs of both the species it is designed to protect and the people who must live within its mandates. Volume 2, which examines philosophical, biological, and economic dimensions of the act in greater detail, will be published in 2006. As debate over reforming the Endangered Species Act heats up in the coming months, these two books will be essential references for policy analysts and lawmakers; professionals involved with environmental law, science, or management; and academic researchers and students concerned with environmental law, policy, management, or science.