Geometric Dimensioning and Tolerancing: Principles and Practices provides complete coverage of GD&T practices established in the ASME Y14.5-2018 standard. The text is organized in a logical sequence and covers introductory topics in depth to help ensure a full understanding of basic concepts before building to more advanced applications. Topics covered include general tolerancing practices, geometric tolerancing practices, types of controls applied with geometric tolerances, and calculating and applying tolerances. GD&T topics are explained using standard terminology defined in the ASME Y145-2018 standard. The text is extensively illustrated with detailed examples that enhance learning and provide in-depth analysis. Review questions and print reading problems at the ends of chapters enable students to reinforce learning, apply concepts, and problem-solving skills. This textbook is an approved American Design Drafting Association (ADDA) publication.