v How to Use This Text Overview The goal of this textbook is to guide you through a logical sequence of learning activi- ties and to use this knowledge in a skill-building format. • It is important for you to have a solid understanding of dimensioning and tolerancing terms, definitions, and concepts before beginning a study of GD&T. • This textbook introduces GD&T concepts methodically to help ensure that you have a full understanding of every basic concept as you build knowledge toward more advanced applications. • GD&T concepts are covered in an easy-to-learn sequence. • It is important for you to master the basics of interpreting, reading, and applying GD&T practices before you explore advanced topics, such as designing and inspection for GD&T. • This textbook approaches GD&T as an easy-to-understand subject rather than something complex and difficult. The authors make every effort to describe and illustrate concepts in an easy-to-read format. • Illustrated examples provide clear and detailed explanations of the related content. Illustrations show dimensioning and tolerancing applications for 2D engineering drawings and 3D models. Model views featured in illustrations correspond to the related 2D views and aid in visualizing details. To the Student Geometric Dimensioning and Tolerancing is for Manufacturing Technology students, Drafting Technology students, professional upgrade training, and anyone interested in learning GD&T. Everything you need to begin your study of GD&T is in this textbook. For Manufacturing Technology students: • The chapter review questions reinforce previously learned topics. Use the review questions as open- or closed-book assessments, or for content review. Write answers on the textbook pages unless otherwise assigned by your instructor. • The print reading problems at the ends of chapters give you the opportunity to read prints illustrating GD&T concepts related to the corresponding chapter. The print reading problems require you to apply concepts from the chapter, interpret information on prints, and use problem-solving skills. Write answers on the textbook pages unless otherwise assigned by your instructor. • The prints used with the print reading problems are actual industry drawings created using computer-aided design and drafting (CADD) software. For Drafting Technology students: • The chapter review questions reinforce previously learned topics. Use the review questions as open- or closed-book assessments, or for content review. Write answers on the textbook pages unless otherwise assigned by your instructor. • The print reading problems at the ends of chapters are optional, but are helpful to understand more about the information provided on prints. Write answers on the textbook pages unless otherwise assigned by your instructor.