Following the steps of data preparation and initial analysis, presenting data visually becomes essential for extracting and sharing meaning. This chapter focuses on the fundamentals of data visualization.

We will cover the purpose of creating visual representations of data and examine standard chart types, including bar charts, line graphs, pie charts, and scatter plots. You'll learn criteria for choosing the right chart for your data and message. We will also review key principles that contribute to effective and clear visualizations, ensuring your charts accurately convey information. A brief overview of common software and libraries used for visualization will also be provided. By the end of this chapter, you will understand how to use basic visuals to explore data and communicate findings.