The "Microfinance Handbook: An Institutional and Financial Perspective" aims to provide guidance and tools for sustainable microfinance and the creation of viable institutions. The handbook is divided into three parts: the first part discusses general microfinance issues from a broad perspective, the second part focuses on financial intermediation with a more technical approach, and the third part delves into assessing the financial viability of microfinance institutions. The main goal is to help promote sustainable microfinance and viable institutions by offering comprehensive information on design, implementation, evaluation, and management of microfinance activities.