Maybe you refer to [1]? These are the two options I like to show students who first get in touch with data visualization. [1] https://www.data-to-viz.com/ http

Maybe you refer to [1]? These are the two options I like to show students who first get in touch with data visualization. [1] https://www.data-to-viz.com/ https://www.data-to-viz.com/ Note: In the about page, they provide an extensive list of historical chart classification schemes :).