Suggests that it is sometimes useful to consider information as being encoded as images, sometimes as language, and sometimes as propositions, and describes research that provides evidence of processing in all these forms. (Author)

This study, to determine whether complexity of detail, scale, and background help subjects to learn technical information, demonstrated no significant difference between groups. One group used the existing self-contained learning package with many complex visuals; the other group used lessons identical in the audio portion but containing…