This Biodiversity Finance Compendium is meant to facilitate the discussions on and practical implementation of biodiversity financing mechanisms and instruments. The word ‘Compendium’ comes from the Latin word compander meaning ‘to weigh together’. It is a concise, yet comprehensive compilation of a body of knowledge, which concerns some delimited field of human interest or endeavor. The information presented in the Compendium builds on the experience gained so far in the framework of the European Biodiversity Resourcing Initiative and related activities and projects.