An apparatus for sharing information in a space comprising a first two dimensional outer emissive surface, a first two dimensional inner emissive surface, a support structure resting on and extending upward from the support floor, the support structure supporting the first outer emissive surface with a first outer surface bottom edge at a work surface height, a first outer surface top edge at a ridge height above the work surface height and supporting the first inner emissive surface with a first inner surface bottom edge at a valley height below the work surface height, a first inner surface top edge at a height above the work surface height, the first inner emissive surface spaced behind the first outer emissive surface by at least twelve inches to form a space between the first outer emissive surface and the first inner emissive surfaces.