The paper discusses the importance of engineering graphics skills development in engineering core education. The engineering graphics subject is the essence of engineering language. In turn, the descriptive geometry is a grammar of engineering graphics. The topic still is important at the age of rapid economic and information technology advancements in all the world. Recent studies about the improvement of “Descriptive Geometry and Engineering Graphics“ course in Riga Technical University will be discussed. The main objective of the course is to introduce the first year students with graphic communication basics and prove the motivation and importance of classical knowledge while dealing with contemporary CAD systems. Geometric modelling and visualization exercises help in improving the spatial perception skills. The selection of particular CAD system depends on the curriculum. The efficiency of the teaching will be higher when one particular CAD system will be streamlined in different subjects during the studies – starting from Engineering Graphics in first year, following Machine Elements, Kinematics Analysis, Finite Element Analysis, Computer Aided Manufacturing, etc. in consecutive studies. SolidWorks was choosen in Mechanical Engineering studies as a the most widely used 3D product design solution.