Seaborn
statistical data visualization
Seaborn is a Python data visualization library based on matplotlib. It provides a high-level interface for drawing attractive and informative statistical graphics.
https://seaborn.pydata.org/
Official documents
Example gallery
http://seaborn.pydata.org/examples/index.html
Tips
Pythonでデータの挙動を見やすくする可視化ツールを作成してみた - Qiita
https://qiita.com/c60evaporator/items/20f11b6ee965cec48570
pairplot
Python Seaborn Cheat Sheet - DataCamp
https://www.datacamp.com/community/blog/seaborn-cheat-sheet-python
Seaborn charts that every Data Scientist Knows! | by Prathamesh Gadekar | Medium