A balanced presentation combining theory, concepts, and tutorials is at the heart of this introduction to 3D computer modeling that is written to the latest version of Rhinoceros, Release 3. Special emphasis is given to understanding theoretical issues on NURBS (nonuniform rational B-splines) curves and surfaces as well as practical issues on the use of Rhinoceros to construct and design 3D free-form models. Real-world applications of NURBS modeling and step-by-step Rhino tutorials help acquaint novices with key features and functions of the software. Advanced users will enjoy the comprehensive nature of the material as a reference for using Rhinoceros to work on their industrial and engineering design projects.