Sometimes I think about these sorts of work­ing graph­ics as a sort of men­tal scaf­fold­ing. In the act of ren­der­ing data, or draw­ing our thoughts, we assem­ble a con­struct to hang oth­er con­cepts from. So it’s a con­struct that can be extend­ed or mod­i­fied or dis­as­sem­bled and turned into some­thing new.