diff --git a/doc/source/cookbook.rst b/doc/source/cookbook.rst
index f69f926296020..49ff987ca3549 100644
--- a/doc/source/cookbook.rst
+++ b/doc/source/cookbook.rst
@@ -745,6 +745,9 @@ Timeseries
 `Vectorized Lookup
 <http://stackoverflow.com/questions/13893227/vectorized-look-up-of-values-in-pandas-dataframe>`__
 
+`Aggregation and plotting time series
+<http://nipunbatra.github.io/2015/06/timeseries/>`__
+
 Turn a matrix with hours in columns and days in rows into a continuous row sequence in the form of a time series.
 `How to rearrange a python pandas DataFrame?
 <http://stackoverflow.com/questions/15432659/how-to-rearrange-a-python-pandas-dataframe>`__