seaborn.jointplot, Michael Waskom and the Seaborn development team, 2023 - Official documentation for the jointplot function, detailing its parameters and illustrating various kind options for visualizing joint and marginal distributions.
Fundamentals of Data Visualization, Claus O. Wilke, 2019 (O'Reilly Media) - A guide to data visualization design, offering principles for effective display of relationships between variables, including scatter plots, heatmaps, and contour plots.