In this chapter, we learned about the NumPY and Pandas modules, as well as data visualization techniques. In the NumPY module section, we learned about indexing and slicing the array and the universal array function. In the pandas module section, we learned about Series and DataFrames. We also learned how to read a csv file into a DataFrame. In data visualization, we learned about the  libraries in Python, which are used for data visualization: matplotlib and plotly.

In the next chapter, you will learn about MySQL and SQLite database administrations.