This is a short introductory text intended for use in technical drawing or drafting courses at two and four year schools or other technology programs. Powerful computers and CAD software are of little use to engineers who do not fully understand the fundamentals of graphics communication principles and 3-D modelling strategies, or do not possess a level of visualization ability. Because of this, Bertoline concentrates on the concepts and skills necessary to sketch and create 2-D drawings and 3-D CAD models in this text. This second edition has more sketching and design principles, and emphasizes teaching students the techniques and standards of communicating graphically, so that design ideas can be clearly communicated and produced. This book is part of the B.E.S.T. (basic engineering series and tools), which consists of modularized textbooks offering virtually every topic and specially likely to be of interest to engineers.