A company can process thousands of sales orders every day, track inventory down to the last bolt, and log every penny spent—yet still be unable to answer a simple question like “Which product line gives us the highest profit margin in the Midwest?” This chapter is about the tools and approaches that turn the raw data inside an Enterprise Resource Planning (ERP) system into real insight. We will see how businesses move from just seeing what happened to knowing why it happened, and even predicting what might happen next.