This book provides a step-by-step introduction to AutoCAD 3D modeling with commands presented in the context of each tutorial. In ten chapters, the author guides you through all the essential tools and techniques in AutoCAD 3D modeling, from creating basic shapes to complex models and finally finishing with 2D drawings. In each tutorial, the author provides step-by-step instructions with frequent illustrations showing what appears on the AutoCAD 3D modeling screen exactly. The AutoCAD 2021 3D Tutorials book begins with the Getting Started chapter that includes the information user interface and terminology. Next, it teaches you to create basic shapes, complex models, assemblies, and 2D drawings. Each chapter concludes with unsolved exercises.