The Role of Image and Color in Textbooks and Academic Books and Its Impacts on Foreign Language Teaching

Textbooks help learning through texts, images and other features. Selecting and placing images in the proper place can facilitate learning. This article deals with the importance of images to teach textbooks, as well as its role in foreign language teaching.
Images have three functions:1) To encourage the reader to study the text,
2) To provide supplementary information about the text,
3) To help the reader's imaginary potential.
In the selection of images, the motivation of learners, standards, quality of images, style and aesthetic values should not be neglected. Arrangement of images is very important too, because human visual system tends to see one object in foreground and another in background. Color is important in images too, because each color has its own special wavelength and influence. Images are applied in the elementary school Persian language study textbooks too. In spite of Bachlard and Tardy who are against image application and consider images an obstacle against learning, we see that many foreign language methods emphasis on conversation and images.