Greg Demchak is a designer, a technology advocate, urban explorer, and post-apocalyptic film producer. He holds architectural degrees from the University of Oregon and Massachusetts Institute of Technology. He is a product designer for Autodesk and has been working with Revit since 2000. He has been teaching at the Boston Architectural College since 2003 and is currently the principal investigator for the 2009 Solar Decathlon competition. He resides in Massachusetts.

Tatjana Dzambazova was the product manager for Revit Architecture between 2005 and 2007, after which she moved into global sales development management for the AEC industry. Before joining Autodesk in 2000, she practiced architecture for 12 years in Vienna and London. At Autodesk, she has focused on evangelizing technology and established herself as an internationally renowned speaker who has fostered relationships with architects and industry leaders from all around the globe. Powered with seemingly unlimited sources of energy and passion, Tanja manages to make three days out of one, always on the hunt of what’s new and exciting in the world of architecture and technology; and when she is not working or coauthoring technology books, she is advocating wildlife conservation, reading books like a maniac, getting inspired in the theaters, and playing Scrabble and Texas Hold ’Em.

Eddy Krygiel is a registered architect, a LEED Accredited Professional, and an Autodesk Authorized Author at BNIM Architects headquartered in Kansas City, Missouri. He has been using Revit since version 5.1 to complete projects ranging from single-family residences and historic remodels to 1.12-million-square-foot office buildings. Eddy is responsible for implementing BIM at his firm and also consults for other architecture and contracting firms around the country looking to implement BIM. For the last four years, he has been teaching Revit to practicing architects and architectural students in the Kansas City area and has lectured around the nation on the use of BIM in the construction industry. Eddy also coauthored Green BIM: Successful Sustainable Design with Building Information Modeling, a book on sustainability and BIM, with Bradley Nies (Sybex, 2008).