This book provides the world's first comprehensive account of responsible investment for fixed income investors. It enables readers to understand the key characteristics of fixed income investments and the relevance of sustainability-related issues. The expert contributors to this volume explain how sustainability-related issues are and could be taken into account in fixed income research and decision-making, in portfolio construction and in active ownership (engagement). The book presents a series of detailed case studies from different parts of the fixed income market (corporate investment grade and high yield, emerging markets, sovereign and municipal debt), from a range of organisations, with a variety of approaches to responsible investment and to fixed income. It also contains in-depth critical analysis of key issues such as the role of credit rating agencies, the role of green bonds, data and public policy. The book provides investors with practical guidance on how they might improve the financial and sustainability-related performance and the environmental, social and governance (ESG) performance of their investments. It also enables stakeholders such as companies, civil society organisations and governments, to understand the role that fixed income might play in delivering the SDGs, and how they might encourage and enable fixed income investors to pay greater attention to sustainability-related issues in their investment practices and processes