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AutoCAD and Its Applications—Basics
Copyright Goodheart-Willcox Co., Inc.
About the Authors About the Author s
Terence M. Shumaker is Faculty Emeritus, the former Chairperson of the Drafting
Technology Department, and former Director of the Autodesk Premier Training
Center at Clackamas Community College in Oregon City, Oregon. Terence taught at
the community college level for over 28 years. He worked as a training consultant
for Autodesk, Inc., and conducted CAD program development workshops around the
country. He has professional experience in surveying, civil drafting, industrial piping,
and technical illustration. He is the author of Goodheart-Willcox’s Process Pipe
Drafting and coauthor of the AutoCAD and Its Applications series and AutoCAD
Essentials.
David A. Madsen is the president of Madsen Designs Inc. (www.madsendesigns.
com) and an Authorized Autodesk Author. David is Faculty Emeritus of Drafting
Technology and the Autodesk Premier Training Center at Clackamas Community
College in Oregon City, Oregon. David was an instructor and department Chairperson
at Clackamas Community College for nearly 30 years. In addition to community
college experience, David was a Drafting Technology instructor at Centennial High
School in Gresham, Oregon. David is a former member of the American Design
Drafting Association (ADDA) Board of Directors, and was honored by the ADDA
with Director Emeritus status at the annual conference in 2005. David has extensive
experience in mechanical drafting, architectural design and drafting, and building
construction. David holds a Master of Education degree in Vocational Administration
and a Bachelor of Science degree in Industrial Education. David is the author of
Geometric Dimensioning and Tolerancing and coauthor of Architectural AutoCAD,
Architectural Desktop and Its Applications, Architectural Drafting Using AutoCAD,
the AutoCAD and Its Applications series, AutoCAD Essentials, and other textbooks
in the areas of architectural drafting, mechanical drafting, engineering drafting, civil
drafting, architectural print reading, and mechanical print reading.
David P. Madsen is the president of Engineering Drafting & Design, Inc., the vice
president of Madsen Designs Inc. (www.madsendesigns.com), an Authorized Autodesk
Author, and a SolidWorks Research Associate. Dave provides drafting and design
consultation and training for all disciplines. Dave has been a professional design
drafter since 1996, and has extensive experience in a variety of drafting, design, and
engineering disciplines. Dave has provided drafting and computer-aided design and
drafting instruction to secondary and postsecondary learners since 1999, and has
considerable curriculum, program coordination, and development experience. Dave
holds a Master of Science degree in Educational Policy, Foundations, and Administrative
Studies with a specialization in Postsecondary, Adult, and Continuing Education;
a Bachelor of Science degree in Technology Education; and an Associate of Science
degree in General Studies and Drafting Technology. Dave is the author of Inventor and
Its Applications and coauthor of Architectural Drafting Using AutoCAD, AutoCAD
and Its Applications—Basics, AutoCAD and Its Applications—Comprehensive,
Geometric Dimensioning and Tolerancing, and other textbooks in the areas of archi-
tectural drafting, mechanical drafting, engineering drafting, civil drafting, architec-
tural print reading, and mechanical print reading.