"The monograph considers influence over time of Fairtrade and Rainforest Alliance in 10 Costa Rican coffee farming communities. In-country perspectives and relevant historic and contemporary literature inform findings. Misaligned intentions to outcomes; different sustainability approaches; and variable influence is observed. There is opportunity to: consider when certifications are most useful; develop locally relevant standards; vertically integrate sourcing chains; consider how complementary mechanisms can be used alongside, or to improve certification approach. Sustainability of coffee as a cash crop, considering influence on biodiversity, and the possible implication of reduced coffee crop density for consumers, the market and farming landscapes, is considered. " This work was published by Saint Philip Street Press pursuant to a Creative Commons license permitting commercial use. All rights not granted by the work's license are retained by the author or authors.