The guide teaches the new and enhanced features introduced in the AutoCAD 2018, AutoCAD 2018.1, and AutoCAD 2019 software. The topics covered range from general improvements and command enhancements, to improvements to drawing documentation and collaboration tools. Among the many changes in this release are changes to the general interface components, including the enhancements to the ribbon and the Quick Access toolbar, the addition of a new drawing file format, and the new Have You Tried option in the Help. There are several enhancements to the working of External References, and new commands for creating and inserting Named Views in layouts have been provided. New collaboration tools, such as Shared views and Compare Drawings, have also been added.