Steve Heather is a former Lecturer of Mechanical Engineering and Computer Aided Design in England, UK. For the past 8 years, he has been a Beta Tester for Autodesk, testing the latest AutoCAD software. He is the co-author of the bestselling series of Beginning and Advanced AutoCAD Exercise Workbooks. Previous to teaching, and for more than 30 years, Heather worked as a Precision Engineer in the aerospace and defense industries. Steve can be contacted for questions or comments at: steve.heather@live.com