This document discusses visual language and communication. It outlines the communication process including the sender, message, code, context, receptor, and channel. It then describes the basic functions of images as informative, aesthetic, expressive, exhortative, narrative, and social. The basic elements of visual language are identified as dot, line, plane, color, texture, and volume. Signifier and signified are defined and the types of visual signs - indexical, iconic, and symbolic - are explained. Finally, the document briefly mentions iconicity of images and types of images as analytic, realistic, figurative, and abstract.