diff --git a/conservancy_beancount/tools/audit_report.py b/conservancy_beancount/tools/audit_report.py
index 0ecf869..096a78c 100644
--- a/conservancy_beancount/tools/audit_report.py
+++ b/conservancy_beancount/tools/audit_report.py
@@ -1,4 +1,9 @@
-"""audit_report.py - Utility to run all reports for an audit"""
+"""audit_report.py - Utility to run all reports for an audit
+
+This tool generates all reports for a fiscal year, plus the following months
+available, to submit for audit. It parallelizes the work to run as efficiently
+as possible.
+"""
 # Copyright © 2020  Brett Smith
 #
 # This program is free software: you can redistribute it and/or modify