matplotlib.pyplot.savefig, Matplotlib Development Team, 2024 - Official documentation for the savefig function, detailing its parameters, supported formats, and advanced usage.
Axis-grid functions, Michael Waskom, 2023 - Seaborn documentation explaining its figure-level functions and how to access the underlying Matplotlib Figure object for saving.
Python for Data Analysis, Wes McKinney, 2022 (O'Reilly Media) - A comprehensive book covering data analysis with Python, including detailed sections on Matplotlib for creating and saving visualizations.