Book excerpt: Unlike many AutoCAD competitors, this book covers only the basics and uses "mixed units"_ inches, meters, feet, kilometers, etc., to illustrate the myriad drawing and editing tools for this popular application. AutoCAD 2010 Essentials includes 21 "workshops," that complete small projects _ from concept through actual plotting. Solving all of the workshops will simulate the creation of a "real life" project from beginning to end, without overlooking any of the basic commands and functions in AutoCAD 2010.