A prolific author and respected instructor, Mr. Alan Jefferis, has taught drafting technology at Clackamas Community College, an Authorized AutoCAD Training Center, for more than thirty-one years. Prior to that, Mr. Jefferis taught for four years at Mt. Hood Community College in Gresham, Oregon. He brings a wealth of professional experience to his writing, including eight years of drafting for structural engineers and thirty years of residential designing. Mr. Jefferis currently owns Residential Designs. He is a former Autodesk Developer Network member and a former member of the A.I.B.D. Mr. Jefferis obtained his BS degree from San Diego State University in 1972. He has authored or co-authored numerous textbooks on architectural drafting and design and effectively working with AutoCAD.
David A. Madsen is the president of Madsen Designs, Incorporated (www.madsendesigns.com). He is Faculty Emeritus of Drafting Technology and the Autodesk Premier Training Center at Clackamas Community College in Oregon City, Oregon, where he was an instructor and department Chairperson for nearly thirty years. In addition to community college experience Mr. Madsen was a drafting Technology Instructor at Centennial High School in Gresham, Oregon. He is a former member of the American Design and Drafting Association (ADDA) Board of Directors, and he was honored by the ADDA with Director Emeritus status at the annual conference in 2005. He has extensive experience in mechanical drafting, architectural design and drafting, and building construction. Mr. Madsen holds a Master of Education Degree in Vocational Administration and a Bachelor of Science Degree in Industrial Education.
David P. Madsen is president of Engineering Drafting and Design, Inc. and the vice president of Madsen Designs, Incorporated (www.madsendesigns.com), He provides drafting and design consultation and training for all disciplines. Mr. Madsen has been a professional design drafter since 1996, and has extensive experience in a variety of drafting, design, and engineering disciplines. He has provided drafting and computer-aided design and drafting instruction to secondary and postsecondary learners since 1999, and has considerable curriculum, and program coordination and development experience. Mr. Madsen 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.
