In March 2023, the Climate Investment Funds (CIF) published an independent evaluation, the Evaluation of the Development Impacts (DIs) from CIF’s Investments that drew evidence from CIF’s extensive portfolio of investments. In addition to a final evaluation report, the evaluation included a secondary information review of broader climate finance programs, a modeling and portfolio analysis on the application and relevance of advanced modeling approaches to estimate DIs, and 13 case studies that provide insights on how CIF projects contributed to DIs. A summary brief was also published alongside the evaluation. This workbook accompanies the evaluation as a step-by-step practical guide on how to plan for DIs. This workbook provides tools for project planners and implementers to explore how to maximize DIs of climate finance projects. It seeks to help climate investors put into action the lessons and insights from the evaluation.