Joshua Vincent is an advocate for an innovative system of land taxation that encourages urban development and discourages urban disinvestment. Land value taxation system typically lowers property taxes on homeowners and vastly increases new construction and infill construction in urban areas. He has worked with tax departments and elected officials in restructuring their taxation to a land value-based system and conducted over 50 land value impact studies for cities across the United States since 1995.
Yannis Tziligakis is an independent thinker/educator/researcher, a published scientist, philosopher, a publicly performing musician and Public Access TV producer and demosiographer. He has done work for various international Institutions NCNR-DEMOCRITOS, CERN, NCN, ,Univ of Michigan, Beckman Inst., Illinois Research Board, GSMT, HGS, IU, Jufeel Health Foundation-UN, etc..He is the founder of the GET-GIVE initiative which engages in education, advocacy and dissemination of the ideas and writings of Henry George towards social and economic justice. A frequent writer and public speaker with Common Ground USA, HGSSS, OIKOS, The New School, The Hellenic American Education Association, EarthSharing-Australia, NYSEC, CCNY, MNN, Left Forum. He is also vice-President of the International Union for Land Value Taxation for EU/Greece.
Marty Rowland is Education Chair for the HGSSS Board of Trustees, Senior Fellow with the Asset Leadership Network, Professional Engineer, and infrastructure policy expert. Works for NYC, writes standards for ASTM. A frequent presenter at the HGSSS, NYC Left Forum, and other venues.