The literature on learning and the use of multiple sensory channels is vast. We include only a few pointers here.
Bereleson and Steiner. Human Behavior. Harcourt, Brace & World, 1964.
[DC95] Dean, T.R. and Cordy, J.R. "A Syntactic Theory of Software Architecture", Special Issue on Software Architecture. IEEE Transactions on Software Engineering 21,4 (April 1995). pp. 302-313.
[Jack94] Jackendorf, Ray. Patterns in the Mind. Basic Books, 1994.
Kintsch, W. "Toward a model of text comprehension and production." Psychological Review 85 (1994), pp 363-394.
[Levin79] Levin, Harry. The Eye-Voice Span. MIT Press, 1979.
[LN72] Lindsay, Peter H. and Norman, Donald L. Human Information Processing. Academic Press, 1972.
[Mayer91] Mayer, Richard. Thinking, Problem Solving, Cognition. W.H. Freeman and Company, 1991.
[NS72] Newell, Allen and Simon, Herbert. Human Problem Solving. McGraw-Hill, 1972.
Shneierman, B. The Psychology of Human Thought. Cambridge University, 1990.
[Smith90] Smith, Edward E. The Psychology of Human Thought. Cambridge University, 1990.
Vygatsky, Lev Semenovic. Thought and Language. MIT Press, 1981.