This book -updated for Release 2019- aims at guiding he who uses AutoCAD on a daily basis in becoming a true expert. That kind of AutoCAD expert that is acquainted with, understands and can manipulate the program's inner workings to achieve the desired output in a fast and efficient way. That expert who is not satisfied with what comes out of the box, but demands more. Like automating the creation and shaping of 3D objects, whether 3DSolids, subdivision...