diff --git a/galleries/examples/userdemo/annotate_explain.py b/galleries/examples/userdemo/annotate_explain.py
index 8f20b5406bd7..e1f37350beaf 100644
--- a/galleries/examples/userdemo/annotate_explain.py
+++ b/galleries/examples/userdemo/annotate_explain.py
@@ -9,30 +9,41 @@
 
 import matplotlib.patches as mpatches
 
+# Create a figure with four subplots arranged in a 2x2 grid
 fig, axs = plt.subplots(2, 2)
+
+# Define the x and y coordinates of two points
 x1, y1 = 0.3, 0.3
 x2, y2 = 0.7, 0.7
 
+# First subplot: connect arrow style
 ax = axs.flat[0]
-ax.plot([x1, x2], [y1, y2], ".")
-el = mpatches.Ellipse((x1, y1), 0.3, 0.4, angle=30, alpha=0.2)
-ax.add_artist(el)
+ax.plot([x1, x2], [y1, y2], ".")    # plot the two points
+el = mpatches.Ellipse((x1, y1), 0.3, 0.4, angle=30, alpha=0.2)  # create ellipse patch
+ax.add_artist(el)    # add the ellipse patch to the plot
+
+# add an arrow connecting the two points with the connect style
 ax.annotate("",
             xy=(x1, y1), xycoords='data',
             xytext=(x2, y2), textcoords='data',
             arrowprops=dict(arrowstyle="-",
                             color="0.5",
-                            patchB=None,
+                            patchB=None,    # Do not use any patch
                             shrinkB=0,
                             connectionstyle="arc3,rad=0.3",
                             ),
             )
+
+# add a text label to the subplot
 ax.text(.05, .95, "connect", transform=ax.transAxes, ha="left", va="top")
 
+# Second subplot: clip arrow style
 ax = axs.flat[1]
 ax.plot([x1, x2], [y1, y2], ".")
 el = mpatches.Ellipse((x1, y1), 0.3, 0.4, angle=30, alpha=0.2)
 ax.add_artist(el)
+
+# add an arrow connecting the two points with the clip style
 ax.annotate("",
             xy=(x1, y1), xycoords='data',
             xytext=(x2, y2), textcoords='data',
@@ -45,10 +56,13 @@
             )
 ax.text(.05, .95, "clip", transform=ax.transAxes, ha="left", va="top")
 
+# Third subplot: shrink arrow style
 ax = axs.flat[2]
 ax.plot([x1, x2], [y1, y2], ".")
 el = mpatches.Ellipse((x1, y1), 0.3, 0.4, angle=30, alpha=0.2)
 ax.add_artist(el)
+
+# add an arrow connecting the two points with the shrink style
 ax.annotate("",
             xy=(x1, y1), xycoords='data',
             xytext=(x2, y2), textcoords='data',
@@ -61,10 +75,13 @@
             )
 ax.text(.05, .95, "shrink", transform=ax.transAxes, ha="left", va="top")
 
+# Fourth subplot: fancy arrow style
 ax = axs.flat[3]
 ax.plot([x1, x2], [y1, y2], ".")
 el = mpatches.Ellipse((x1, y1), 0.3, 0.4, angle=30, alpha=0.2)
 ax.add_artist(el)
+
+# Add an arrow connecting the two points with the fancy style
 ax.annotate("",
             xy=(x1, y1), xycoords='data',
             xytext=(x2, y2), textcoords='data',
@@ -75,9 +92,13 @@
                             connectionstyle="arc3,rad=0.3",
                             ),
             )
+
+# Add text to the plot to label the arrow as "connect"
 ax.text(.05, .95, "mutate", transform=ax.transAxes, ha="left", va="top")
 
+# Set the limits of the plot and remove the tick marks
 for ax in axs.flat:
     ax.set(xlim=(0, 1), ylim=(0, 1), xticks=[], yticks=[], aspect=1)
 
+# Show the plot
 plt.show()