Economic evaluation is important to making good decisions about the provision and management of infrastructure throughout its life cycle.  Practitioners must have a solid grasp of the relevant tools and best practices when evaluating and appraising investments.  This guide includes an introduction to economic evaluation, the steps involved in preparing and interpreting a cost-benefit analysis, and best practice examples.  Along with the companion materials and videos, the guide enables Pacific practitioners to make informed, high-quality decisions as they develop future infrastructure projects.