Updated to the latest ANSI, ISO, AWS, and ASME standards, this 50th Anniversary Edition helps individuals develop skills in reading and interpreting industrial drawings and in preparing simple technical sketches. It is written to be a consumable, interactive text/workbook that provides basic principles, concepts, ANSI and SI Metric drafting symbols and standards, terminology, manufacturing process notes, and other related technical information contained on a mechanical or CAD drawing. Each unit features a basic principle and at least one blueprint and assignment that encourages users to practice newly learned skills.