Sham Tickoo is a professor in the Department of Mechanical Engineering Technology at Purdue University Calument, USA. He has been teaching CAD/CAM, AutoCAD, AutoLISP, drafting, and design since 1981. In addition to his academic career, Professor Tickoo has worked as a machinist, quality control engineer, design engineer, and software developer and his general research interests are in the design and development of new products like wind-turbines. He has authored and coauthored several books on CAD/CAM like CATIA, NX, Pro/E, SolidWorks, Solid Edge, Autodesk Inventor and 3ds Max. Sham Tickoo received his Masters of Science Degree in Industrial Technology from Northern Illinois University and his Masters of Science Degree in Industrial and Management Engineering from the University of Iowa, Iowa City.