In this article, Mark Litwintschik shares his 15 years of consulting experience with clients in various countries, including Bank of America Merrill Lynch, Google, and Royal Mail. He talks about the two major phases of data analysis and how Altair, a Python implementation of Vega and Vega-Lite, can help reduce the amount of code required to produce interactive charts. Litwintschik provides step-by-step instructions on how to install and set up Altair in a Jupyter Notebook, and shares some examples of the types of charts you can create. If youre interested in data visualization, youll find this article incredibly helpful.