Our world is experiencing increasingly complex social and environmental challenges. The prevailing business models and, to some extent, capitalism per se, are frequently blamed for these problems due to their neglect of social and environmental values in favour of financial returns. Within this context, social finance has attracted the attention of governments, organizations, entrepreneurs, and researchers as a means of mobilizing resources and innovation with the goal of establishing effective long-term solutions. This edited collection summarizes, discusses, and analyzes new innovative trends in social finance. It features contributions that aim to highlight emerging trends (products, tools, and processes) in social finance, present a series of case studies related to the development, deployment, and scaling of social finance innovations, offer an understanding of how non-economic externalities are being incorporated, managed, and assessed in recent innovations, reveal the disruptive potential of social finance innovations by analyzing how they are redefining mainstream finance, analyze the scales – of operation and impact – of different innovations, and explore the complex relationship between social finance and social innovation. Featuring contributions from both the research and practitioner community as well as policy actors, the book provides more than a snapshot of the current social finance field by specifically highlighting the major challenges and difficulties that require the urgent attention of policymakers and social entrepreneurs.