This tutorial provides an introduction to data visualization in the field of data science, specifically focusing on R and the ggplot2 software. The course covers the basics of creating meaningful and visually appealing data visualizations using the grammar of graphics plotting concepts. ggplot2 is widely recognized as the go-to tool for creating professional and flexible plots in R. The course emphasizes three main layers of a plot: Geometries, Data, and Aesthetics. By mastering these concepts, participants will gain the ability to create complex exploratory plots. This course overview serves as a valuable resource for those interested in delving into the world of data visualization and analytics within the realm of data science.