This document provides an overview of evaluation, including its benefits, key stages, and approaches. It discusses: - The purpose of evaluation is to objectively understand the implementation and effects of a policy or intervention. - Benefits include improving practice, supporting future investment, and providing accountability. - There are three main types of evaluation: process, impact, and economic. Impact evaluation determines changes caused by the policy. - Important factors in choosing an evaluation approach include the policy's objectives, timing, expected impacts, and available resources. - Main stages include defining objectives, identifying questions, selecting the approach, collecting data, and disseminating findings.