The visual variables (Bertin, 1967/1983) used for cartographic

CV-08 - Symbolization and the Visual Variables

Cognition, Metacognition, and the Design of Maps - Mary Hegarty, 2013

Visual Variables - InfoVis:Wiki

The visual variables and their syntactics. Figure derived from Bertin

Visual Variables

The distance-similarity metaphor in network-display spatializations - Document - Gale Academic OneFile

Theories and Models in Graph Comprehension

Bertin's visual variables, source: makingmaps.net. Furthermore, point

Spatial Information: Visualisation

The visual variables (Bertin, 1967/1983) used for cartographic

Cognition, Metacognition, and the Design of Maps - Mary Hegarty, 2013