  Information Visualization techniques are built on a context with many factors
related to both vision and cognition, making it difficult to draw a clear
picture of how data visually turns into comprehension. In the intent of
promoting a better picture, here, we survey concepts on vision, cognition, and
Information Visualization organized in a theorization named Visual Expression
Process. Our theorization organizes the basis of visualization techniques with
a reduced level of complexity; still, it is complete enough to foster
discussions related to design and analytical tasks. Our work introduces the
following contributions: (1) a Theoretical compilation of vision, cognition,
and Information Visualization; (2) Discussions supported by vast literature;
and (3) Reflections on visual-cognitive aspects concerning use and design. We
expect our contributions will provide further clarification about how users and
designers think about InfoVis, leveraging the potential of systems and
techniques.
