This document discusses key marketing metrics and how to measure success. It recommends focusing on metrics that measure customer response and cash flow, rather than generic reach metrics. The three most important categories of metrics are identified as: 1) response rates, 2) profitability measures like gross and net profit margins, and 3) liquidity measures like days cash on hand. Price increases are highlighted as one of the most impactful metrics within a business's control. The document emphasizes measuring the right metrics to support business strategy and drive desired financial results.