This document discusses how to conduct an economic impact analysis (EIA) for festivals and events. It outlines three DIY methods for conducting an EIA with varying levels of accuracy and effort. Method 1 uses average spending data to estimate impact. Method 2 uses hotel receipts and algebra to estimate total spending. Method 3 involves surveying attendees and consulting a professional for analysis. The document also provides two case studies that used Method 3 to analyze the economic impact of festivals in Texas.