5This book meets the requirements for a High School or College beginning drafting class. Written in an easy-to-follow approach, it can be used for individual study or class-room setting to prepare the student for advanced board drafting or CAD drafting. The book stays 'on the subject' to teach the basic principles and techniques of mechanical drawing. It introduces the instruments and explains their use before proceeding through the topics, one by one, of lettering, orthographic projection, measuring and scaling, dimensioning, sectioning, pictorial drawings, and sketching. There are ample practice exercises included in the book.