The book is a self-taught study of a lightweight version of one of the best computer-aided design systems COMPASS-3D LT V9 , designed to perform design documentation (two-dimensional modeling) and construction of three-dimensional models . Previous edition of the book according to COMPASS-3D LT 5. 11 based on the results of the First All-Russian competition for the best educational and methodological development on the use of CAD in the educational process in 2004. awarded the prize for the victory in the nomination "The best educational and methodological development for the use of KOMPAS-3D" The publication is intended primarily for college and university students, but can also be useful for engineers, researchers and anyone involved in CAD design. ;Griff:Previous edition of COMPASS-3D LT 5. 11 based on the results of the First All-Russian competition for the best educational and methodological development on the use of CAD in the educational process in 2004. awarded the prize for the victory in the nomination "The best educational and methodological development for the use of KOMPAS-3D"