diff --git a/unimore_bda_6/database/__init__.py b/unimore_bda_6/database/__init__.py
index 22ee5bf..78e6afa 100644
--- a/unimore_bda_6/database/__init__.py
+++ b/unimore_bda_6/database/__init__.py
@@ -1,3 +1,7 @@
+"""
+This module contains objects to access the MongoDB database and retrieve data from it in different formats.
+"""
+
 from .cache import *
 from .collections import *
 from .connection import *