A sturdy blackboard of dark slate or painted wood dominates the front of scholarly halls and guild lecture rooms, its surface etched with chalk diagrams of arcane runes, battle formations, or merchant ledgers. Teachers inscribe lessons visible to all apprentices at once, erasable yet enduring through countless sessions.
The blackboard looms, its dark slate surface pitted and faintly dusty, streaked with ghost-traces of erased chalk. Fresh white lines carve crisp runes and angular diagrams; powdery residue clings to every groove, catching the torchlight in soft halos.