A new report from Credit Suisse and Rockefeller Philanthropy Advisors, entitled, “Strategic Philanthropy: Guide to Evaluation,” provides greater context and clarity around evaluation, drawing from a review of best practices, interviews conducted by Rockefeller Philanthropy Advisors and examples from a variety of case studies, to address why philanthropists think about evaluation. The paper also gives an overview of the major trends and practices in evaluation, and provides suggestions on how philanthropists can make evaluation effective for their work.