diff --git a/README.md b/README.md
index 6cb2305..4f1283a 100644
--- a/README.md
+++ b/README.md
@@ -15,6 +15,7 @@
 * Fast.
 * Allows exporting distinct metric sets via distinct endpoints. See [Set](http://godoc.org/github.com/VictoriaMetrics/metrics#Set).
 * Supports [easy-to-use histograms](http://godoc.org/github.com/VictoriaMetrics/metrics#Histogram), which just work without any tuning.
+  Read more about VictoriaMetrics histograms at [this article](https://medium.com/@valyala/improving-histogram-usability-for-prometheus-and-grafana-bc7e5df0e350).
 
 
 ### Limitations
diff --git a/histogram.go b/histogram.go
index 2d5f80b..5d3b0fc 100644
--- a/histogram.go
+++ b/histogram.go
@@ -19,6 +19,8 @@ const (
 
 // Histogram is a histogram for non-negative values with automatically created buckets.
 //
+// See https://medium.com/@valyala/improving-histogram-usability-for-prometheus-and-grafana-bc7e5df0e350
+//
 // Each bucket contains a counter for values in the given range.
 // Each non-empty bucket is exposed via the following metric:
 //