This document provides an overview of best practices for marketing metrics and return on investment (ROI) analysis. It emphasizes using metrics that demonstrate marketing's impact on key business metrics like revenue and profits. Specifically, it recommends focusing on the revenue cycle and pipeline performance, incremental revenue from programs, and marketing forecasts of new business. It also discusses challenges like multi-touch attribution and provides examples of using testing and controls to better measure individual program ROI. The overall message is that marketing should "speak the language of business" by selecting metrics that show their contribution to financial goals.