Source: Representation and recognition of the spatial organization of three-dimensional shapes, 1978, p. 274
“We distinguish diagrammatic from sentential paper-and-pencil representations of information by developing alternative models of information-processing systems that are informationally equivalent and that can be characterized as sentential or diagrammatic. Sentential representations are sequential, like the propositions in a text. Diagrammatic representations are indexed by location in a plane. Diagrammatic representations also typically display information that is only implicit in sentential representations and that therefore has to be computed, sometimes at great cost, to make it explicit for use. We then contrast the computational efficiency of these representations for solving several. illustrative problems in mathematics and physics.”
Source: 1980s and later, "Why a diagram is (sometimes) worth ten thousand words," (1987), p. 65
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Herbert A. Simon 58
American political scientist, economist, sociologist, and p… 1916–2001Related quotes
Representation and recognition of the spatial organization of three-dimensional shapes, 1978

Source: 1980s and later, "Why a diagram is (sometimes) worth ten thousand words," (1987), p. 71, as cited in: Bauer, Malcolm I., and Philip N. Johnson-Laird. " How diagrams can improve reasoning http://mentalmodels.princeton.edu/papers/1993diags%26reasoning.pdf." Psychological Science 4.6 (1993): 372-378.

““Better to make haste slowly than not at all,” said Amnir sententiously.”
Source: The Ginger Star (1974), Chapter 11 (p. 74)
(2004), p. v
How Maps Work: Representation, Visualization, and Design (1995)

Source: Part II : Practical Pictorial Photography, Fidelity to nature and justifiable untruth, p. 3

Source: Semiology of graphics (1967/83), p. 2