Information displays should be annotated, combining words, images, graphics, whatever it takes to describe and explain something. Annotation calls out and explains information and, at the same time, explains to viewers how to read data displays. Good annotation is like a knowledgeable expert/teacher at the viewer's side pointing and saying, "Now see how this works with that, how this might explain that..."
Yehudi Menuhin, a great violinist, marked up a score for Bach's Sonata No. 2 for Solo Violin. Penciled annotations show real-time performance strategies. To outsiders, insider markups appear chaotic and cryptic, but these personal annotations are for Menuhin's eyes, the only eyes that matter. All can learn from this useful workaday grid strategy: a relevant and intense data layer can become a coherent substrate scaffold upon which to overlay additional information. Maps do this all day long.
Both a book and a MoMA exhibition of the same name by Bernard Rudofsky originally published in 1964. It provides a demonstration of the artistic, functional, and cultural richness of vernacular architecture.
In 200 enlarged black-and-white-photographs, he showed various kinds of architectures, landscapes, and people living with or within architectures. Shown without texts or explanations, the visitors were just confronted with imagery that showed indigenous building traditions, which were very much at odds with the ideas of architectural modernism which had been promoted through NYC MoMA's Philip Johnson in his famous 1932 exhibition "Modern Architecture. International Exhibition".