diff --git a/solutions/2.2-vmin_vmax_imshow_and_colorbars.py b/solutions/2.2-vmin_vmax_imshow_and_colorbars.py
index 2bc76a8..208e6ea 100644
--- a/solutions/2.2-vmin_vmax_imshow_and_colorbars.py
+++ b/solutions/2.2-vmin_vmax_imshow_and_colorbars.py
@@ -15,6 +15,7 @@
 
 # Now you're on your own!
 for ax, data in zip(axes, [data1, data2, data3]):
+    # Display data, explicitly making the colormap cover values from 0 to 3
     im = ax.imshow(data, vmin=0, vmax=3, interpolation='nearest')
 
 fig.colorbar(im, cax=cax, orientation='horizontal')