The Visual Display of Quantitative Information, Edward R. Tufte, 1983 (Graphics Press) - Explores fundamental principles for effective visual display of quantitative information, emphasizing clarity, precision, and integrity.
R for Data Science, Hadley Wickham and Garrett Grolemund, 2023 (O'Reilly Media) - Offers comprehensive practical guidance on data visualization and exploratory data analysis, with concepts widely applicable beyond R.