Diagrams: from ISOTYPE to GIF. Notes for a didactic of the graphic analysis of the architecture

This text addresses the use of analytical diagrams as a didactic method for the knowledge and diffusion of architecture. The characteristics and qualities of these diagrams will be studied, and also their relationships with the emerging diagrammatic studies of the early twentieth century, being them understood as a certain universal visual language. The analytical diagram, opposed to the generative diagram, will be considered to be distinctive and specific to the graphical teaching in architecture. Its remarkable development will be taken into account, and thus its use in the modern society of information and communication.