David Gatten has completed four films in the series Secret History of the Dividing Line: A True Account in Nine Parts. Centering on Virginia's Byrd family library, they bring out the sensuousness of printed text. Gatten comments, “From Leonardo da Vinci to Étienne-Jules Marey, practitioners of a certain mode of transcendental empiricism turned repeatedly to combinations of words and images describing the flight of birds. This film-as-bibliography of William Byrd's library finds its name and shape within a single volume from that collection: Athanasius Kircher's seventeenth-century encyclopedia, The Great Art of Knowing. Herein you find tangled texts and crossed destinies, filled with figures at once buried deep and tossed high by history."