Pandas is the de-facto standard for working with tabular data in Python - and once you internalize its model (DataFrame = labeled 2D table, Series = labeled 1D array), 90% of your "wait, how do I do X in Pandas?" questions disappear. This tutorial gives you that mental model first, then walks through every operation you will actually hit in real data work.
We cover reading and writing data (CSV, SQL, Excel), selecting rows and columns, cleaning and converting types, combining DataFrames (concat / merge / join), grouping and reshaping (groupby / pivot / melt), and visualization. Every example uses real-looking data instead of toy [1, 2, 3] rows, and every snippet is tested on pandas 2.x.
Click Start the course to begin with the Pandas concepts chapter, or jump to the chapter you need - Selecting Rows and Columns and Combining DataFrames are the most-bookmarked.

