This document provides an overview of monitoring and evaluation (M&E), including basic definitions, key concepts, and how to establish an effective M&E system. It discusses what M&E is, the differences between monitoring and evaluation, why M&E is important, essential components of an M&E system including indicators and baselines, and the purpose and benefits of M&E. The document also covers monitoring tools and templates, who conducts and uses M&E information, and different types of monitoring like process, effect, and monitoring significant change.