This manual discusses the use and interface of the GibbsCAM Turning option. This manual is intended for users of a basic 2-Axis Lathe; however, the lessons learned are applied across more advanced C-Axis and Multiple Turret Machines. Recommended prior reading: read Geometry Creation. Last major update: February 2009, for GibbsCAM 2009, v9.0; last revised January 2015, for GibbsCAM 2015, v11.0