Combining theory, empirical data, and policy, this book provides a fresh analysis of sustainable finance. It explains the sustainability challenges for corporate investment and shows how finance can steer funding to certain companies and projects without sacrificing return, speeding up the transition to a sustainable economy. Principles of Sustainable Finance comes with a perfect timing: all around the planet a new, long-term and responsible capitalism is emerging. It requires to combine both a new academic perspective and attention to its concrete implementation. This is exactly what this important book achieves and makes it so valuable for both students, researchers and practitioners.