Copyright Goodheart-Willcox Co., Inc. iv Print Reading for Industry Dr. Ryan K. Brown is an Associate Professor Emeritus of the Depart- ment of Technology at Illinois State University, Normal, Illinois, where, for over 25 years, he taught various drafting and design topics. His teaching experiences also include four years as a faculty member at his alma mater, Eastern Kentucky University, and fi ve years teaching drafting at the junior and senior high level. His work experiences include short term and summer positions in a wide array of drafting and graphics-based applications, such as steel detailing, plant layout, robotic simulation, and civil engineering drawings. He also conducted several workshops for companies in the fi eld of geometric dimensioning and tolerancing, most extensively for IBM. He continues to serve as an author for secondary-level drafting competitions in Illinois and provides architectural drafting services to local organiza- tions. Feel free to contact him at rkbrown@ilstu.edu with respect to the textbook and related materials. During his career, Dr. Walter C. Brown was a leading authority in the fi elds of drafting and print reading. He served as a consultant to industry on design and drafting standards and procedures. He authored several books in the fi elds of drafting, print reading, and mathematics, and was a professor in the Division of Technology at Arizona State University, Tempe, Arizona. About the Authors