Ohcanbohtosat

Techniques for producing visual instructional media / Dahkki Minor, Ed

Exercises in visual thinking / Dahkki Wileman, Ralph E.

Visual communication handbook : teaching and learning using simple visual materials / Dahkki Saunders, Denys John

Graphics for learning proven guidelines for planning, designing, and evaluating visuals in training materials / Dahkki Clark, Ruth Colvin

An electronic book accessible through the World Wide Web; click to view