The book reveals the secrets of mastery of working in the AutoCAD environment. Useful tips on user settings, applying graphic standards, managing symbol libraries, and working with 3D models are provided. Included is an overview of features used in practice, but often ignored in other books, such as DOS functions, packages (scripts) for automatic editing of drawings, writing and debugging AutoLISP programs in the VisualLISP editor, and programming in AutoLISP. Ready-made AutoLISP programs and other codes are given. The techniques described will help improve skills and knowledge, as well as increase productivity in AutoCAD. For a wide range of users