David A. Madsen is the owner of Madsen Designs and Faculty Emeritus of Drafting Technology and the Autodesk Premier Training Center at Clackamas Community College in Oregon City, Oregon. He is a Director Emeritus of the American Design and Drafting Association (ADDA). David holds a Master of Education degree in Vocational Administration and a Bachelor of Science degree in Industrial Education.David P. Madsen is the president of Engineering Drafting & Design, Inc. He provides drafting and computer-aided design and drafting instruction to secondary and postsecondary learners, and has considerable curriculum, program coordination, and development experience. David holds a Master of Science degree in Educational Policy, Foundations, and Administrative Studies with a specialization in Postsecondary, Adult, and Continuing Education and a Bachelor of Science degree in Technology Education.