Well prepared, carefully chosen, two-dimensional visual aids are valuable in the learning process as a source of information and as a stimulator of student response. A student's visual perception and his degree of self-awareness can be evaluated by his reaction to pictures. At the instructional level, pictures can expand an experience, dramatize a…

Under the sponsorship of the National Project in Agricultural Communications, a series of 14 lessons by various authors has been compiled to serve as a reader or training manual in the field of visual communications. Several models of communications are outlined and evaluated. Many studies which concern themselves with the concepts of source,…