Contributors photograph a board they wrote on, or may share, square on, glare avoided, whole surface in frame; commercially confidential content, unreadable boards and glare-covered shots are refused, 30 photos per contributor at most. Boards are hard and useful because they combine handwriting, hand-drawn diagrams, boxes, arrows and spatial grouping on one surface, with the marker colors and erasures of real use; lessons and meetings here are in the languages of a global base strongest in Southeast Asia, the United States and Europe. No transcriptions or regions are included. Whiteboard content is usually confidential or wiped, so board-reading models train on small staged sets; this is a whole-board reading problem, not a text-line problem.