David is the director of engineering and Construction for the Georgia Department of Natural Resources where he implemented and manages one of the most successful green building programs in the nation. The Georgia Department of Natural Resources where ranks first among state agencies nationally with the highest number of LEED certified projects and consistently ranks in the top ten of all building owners in the nation. David is a Registered Professional Engineer, a Building Council where he conducts LEED workshops across the country. He serves on the Board of Directors of the Atlanta Chapter of the U. S. Green Building Council, is a member of the State Facilities Energy Council, is Past President and a Board Member of the Georgia Association of State Facilities Administrators, and President-Elect of the Association of Conservation Engineers.

Martha M. Tyson, MLA, BLA is the author of The Healing Landscape: Therapeutic Outdoor Environments (McGraw-Hill 1998), co-author of Alzheimer’s Treatment Gardens with John Zeisel (in Cooper-Marcus Barnes – Healing Gardens 1999) and most recently, Naturally Mapped Outdoor Environments and Independence in the Therapeutic Environments issue of Alzheimer’s Care Quarterly (2002). She has written numerous articles and facilitated workshops and lectures on design process and healing gardens at national conferences and universities including the University of Minnesota, University of Illinois, Harvard University Graduate School of Design and the Symposium on Healthcare Design. Her person-centered philosophy applies classic design theory, cognitive mapping and the study of human behavior to guide groups through the process of creating restorative outdoor places for people in a range of health care settings.

Martha received a Bachelor’s Degree in Landscape Architecture from the University of Minnesota Twin Cities in 1987 and a Master’s Degree in Landscape Architecture and Environment Behavior Studies from the University of Illinois at Urbana-Champaign in 1992. With over fifteen years of professional experience Martha is the designer of special needs gardens for hospitals, assisted living residences, skilled care facilities, schools and private homes. Martha is a designer in Door County, Wisconsin and a design process consultant with the Chicago Botanic Garden’s Horticultural Therapy Services Program.

Martha’s professional associations include Meristem, a non-profit organization based in New York City dedicated to the education of healthcare providers and the general public on the benefits of gardens in healthcare facilities. She is currently writing a book on participatory design process and using natural mapping to design outdoor environments for people with brain related illness.