I'm reminded of the Peabody Rebus Reading System, an old (1960s) system for reading pedagogy based on the "whole word reading" idea in which a text is presented

I'm reminded of the Peabody Rebus Reading System, an old (1960s) system for reading pedagogy based on the "whole word reading" idea in which a text is presented as a series of pictograms representing words, which are gradually replaced with their corresponding words. My sister learned to read this way, though she doesn't remember it.