Jo?o Santos is the manager and main instructor at QualiCAD (www.qualicad.com), one of the most important Portuguese ATCs (Autodesk Authorized Training Center), based in Lisbon. With a degree in Mechanical Engineering, he has been teaching AutoCAD for more than 25 years and, most recently teaching several AutoCAD clones such as DraftSight, ZW CAD, ProgeCAD, BitCAD. He is an AutoCAD 2013 and 3ds Max 2013 Certified professional user and instructor, being also the Portuguese instructor in these technologies with more students. Jo?o is the author and co-author of more than 40 Portuguese AutoCAD and 3ds Max books. He is also the author of Autodesk AutoCAD 2013 Practical 3D Drafting and Design, Packt Publishing.
First of all, I would like to thank my family for all their support and guidance. No less important are all my friends, students, readers and colleagues for their continuous questions, feedback, suggestions, and basically shaping my career. And I would also like to express my gratitude to everyone at Packt for this opportunity and collaboration.