The document provides guidance on how to build an effective marketing plan and measure return on investment (ROI) for a law firm. It outlines an 8-step process for developing a marketing plan, including conducting an analysis of the firm's current marketing efforts and clients, defining the ideal client, identifying competitive advantages, determining appropriate marketing mediums, setting goals and budget, ensuring readiness for growth, and tracking results to measure ROI and make adjustments. The document emphasizes the importance of having a marketing plan, tracking costs and conversions, and using data to analyze ROI in order to focus efforts and chart success.