What is graphic communication? Firstly, it is a very effective way of communication between the technical idea and the final solution of the problem in engineering. The process engineering design (design) begins with visualization, i.e., reviewing the problem and possible solutions. Then, sketching leads to the preparation of the initial idea. Next step is preparation of geometric models, which are used for a variety of engineering analysis and, finall¢ǰ creating detailed drawings and/or 3D models, which are used for the production process. Visualization, sketching, modelling and prepara‐ tion of technical documentation are ways in which engineers and technologists communicate in creating new products and structures in the modern technical world. Essentially, graphic communication, which is done via engineering drawings and models, is the clean, practical language with defined rules that need to be overcome if one wants to be successful in engineering design (any kind of design). When that language can overcome any approach to solving engineering problems. Ninety‐two percent of the engineering design process is based on the graphic display. The remaining 8% is divided between the mathematical calculations and wriĴen and oral communi‐ cation. Fifty percent of the projecting time a designer spends on are purely visual and graphic activities. We like precision in communication. Engineers use graphical tools, some of which are centuries old and are used day‐to‐day, while others are very new and conditioned by the rapid development of computer technology, such as Computer Aided Design (CAD) systems. From this chapter, users will be able to familiarize themselves with the above tools and principles of their use.