This document discusses three types of lean reports that provide visibility into a workflow process: 1) Cumulative Flow Diagram (CFD) visually depicts work queues and completion trends over time to find and fix bottlenecks. 2) Process Control Chart identifies outliers in the process by plotting work item completion times to focus improvement efforts. 3) Average Cycle Time report identifies trends in delivery velocity by charting average completion times over time. The reports can be filtered and customized in various ways such as work item type, date range, assignee, and other attributes.