With over 2,700 endemic plant taxa, including relict species, the Caucasus region is one of the world’s most beautiful and important biodiversity hotspots. The Red List of the Endemic Plants of the Caucasus provides the first floristic and conservation analysis of the plants of the region, with assessments for over 60% of the endemic taxa, including top priorities for conservation action. This book was made possible by an unprecedented collaboration between botanists from Armenia, Azerbaijan, Georgia, Iran, the Russian Federation, and Turkey. This work will serve as an integral tool for botanists, ecologists, and researchers worldwide, working to study and protect the biodiversity heritage of this important region.