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About the author
Mark Middlebrook is sole proprietor of Daedalus Consulting, an independent CAD consulting company. He devotes most of his time to using, teaching, and developing custom applications for AutoCAD.
David Byrnes is one of those grizzled old-timers you'll find mentioned every so often in AutoCAD 2007 For Dummies. He began his drafting career on the boards in 1979 and discovered computer-assisted doodling shortly thereafter. He first learned AutoCAD with version 1.4, around the time when personal computers switched from steam to diesel power. Dave is based in Vancouver, British Columbia, and has been an AutoCAD consultant and trainer for 15 years. Dave is a contributing editor for Catalyst magazine and has been a contributing author to ten books on AutoCAD. He teaches AutoCAD and other computer graphics applications at Emily Carr Institute of Art + Design and British Columbia Institute of Technology in Vancouver. Dave has tech edited six AutoCAD for Dummies titles. AutoCAD 2007 For Dummies is his second go-round as co-author of this title.
