diff --git a/svg/charts/__init__.py b/svg/charts/__init__.py
index 97c8cb4..35c89cd 100644
--- a/svg/charts/__init__.py
+++ b/svg/charts/__init__.py
@@ -1,4 +1,8 @@
 #!python
 # -*- coding: UTF-8 -*-
 
+"""
+svg.charts package.
+"""
+
 __all__ = ('graph', 'plot', 'time_series', 'bar', 'pie', 'schedule', 'util')
diff --git a/svg/charts/graph.py b/svg/charts/graph.py
index d56934c..21567ad 100644
--- a/svg/charts/graph.py
+++ b/svg/charts/graph.py
@@ -1,6 +1,12 @@
 #!python
 # -*- coding: UTF-8 -*-
 
+"""
+svg.charts.graph
+
+The base module for `svg.charts` classes.
+"""
+
 from operator import itemgetter
 from itertools import islice
 import pkg_resources