diff --git a/README.md b/README.md
index 6a22be7..dbd0354 100644
--- a/README.md
+++ b/README.md
@@ -22,4 +22,5 @@ I am planning to share how to make publication-quality figures in python, I will
 4. [legend,flexibly adjust it](https://github.com/frankligy/python_visualization_tutorial/blob/main/examples/legend.ipynb)
 5. [transformation, bbox](https://github.com/frankligy/python_visualization_tutorial/blob/main/examples/extend_ax.ipynb)
 6. [stacked legend](https://github.com/frankligy/python_visualization_tutorial/blob/main/examples/stacked_legends.ipynb)
-7. stay tuned
+7. [Markersize](https://github.com/frankligy/python_visualization_tutorial/blob/main/examples/markersize.ipynb)
+8. stay tuned