David Byrnes is one of those grizzled old-timersyou’ll find mentioned every so often in AutoCAD 2007 ForDummies. He began his drafting career on the boards in 1979 anddiscovered computer-assisted doodling shortly thereafter. He firstlearned AutoCAD with version 1.4, around the time when personalcomputers switched from steam to diesel power. Dave is based inVancouver, British Columbia, and has been an AutoCAD consultant andtrainer for 15 years. Dave is a contributing editor forCadalyst magazine and has been a contributing author to tenbooks on AutoCAD. He teaches AutoCAD and other computer graphicsapplications at Emily Carr Institute of Art + Design and BritishColumbia Institute of Technology in Vancouver. Dave has tech editedsix AutoCAD For Dummies titles. AutoCAD 2007 ForDummies is his second goround as coauthor of this title.
Mark Middlebrook used to be an engineer but gave it upwhen he discovered that he couldn’t handle a real job. Since1988, he has been principal of Daedalus Consulting, an independentCAD and computer consulting company in Oakland, California. (Incase you wondered, Daedalus was the guy in ancient Greek legend whobuilt the labyrinth on Crete. Mark named his company after Daedalusbefore he realized that few of his clients would be able topronounce it and even fewer could spell it.) After having mademischief in the CAD world for 17 years, Mark now has embarked on acareer in the wine world. He sells and writes about wine for PaulMarcus Wines in Oakland and develops winerelated Web sites forCruForge.