diff --git a/doc/gallery/control_plot_colorbar.py b/doc/gallery/control_plot_colorbar.py
new file mode 100644
index 00000000000..a09d825f8f0
--- /dev/null
+++ b/doc/gallery/control_plot_colorbar.py
@@ -0,0 +1,31 @@
+# -*- coding: utf-8 -*-
+"""
+===========================
+Control the plot's colorbar
+===========================
+
+Use ``cbar_kwargs`` keyword to specify the number of ticks.
+The ``spacing`` kwarg can be used to draw proportional ticks.
+"""
+import xarray as xr
+import matplotlib.pyplot as plt
+
+# Load the data
+air_temp = xr.tutorial.load_dataset('air_temperature')
+air2d = air_temp.air.isel(time=500)
+
+# Prepare the figure
+f, (ax1, ax2, ax3) = plt.subplots(1, 3, figsize=(14, 4))
+
+# Irregular levels to illustrate the use of a proportional colorbar
+levels = [245, 250, 255, 260, 265, 270, 275, 280, 285, 290, 310, 340]
+
+# Plot data
+air2d.plot(ax=ax1, levels=levels)
+air2d.plot(ax=ax2, levels=levels, cbar_kwargs={'ticks': levels})
+air2d.plot(ax=ax3, levels=levels, cbar_kwargs={'ticks': levels,
+                                               'spacing': 'proportional'})
+
+# Show plots
+plt.tight_layout()
+plt.show()