Literature Review: What is Visual Literacy?
http://www.stc.org/ConfProceed/1993/PDFs/Pg543546.pdf

Couse, Mary M.
STC Proceedings
1993

Abstract:

This paper takes a look at what is being said in various disciplines (technical writing, journalism, education, psychology, user interface design, and visual arts) in an attempt to answer the question 'What is visual literacy?' A corollory is 'How will I know when I have achieved it?' A working definition of visual literacy has many implications for how we train technical writers in order to meet the professional challenges of the future.