A mixed shelf becomes easier to use when its sorting rule is visible. For this practice shelf, use cover colour rather than subject. Move one book at a time into a matching group. Put anything undecided in a separate tray. Do not force it into a category just to finish the row. Now compare the arrangement with the rule. Could someone place the next book without asking you? If not, simplify the groups or add clear labels in editing. This is an exercise in explaining a process, not a claim that colour is the best system for a real library. Pick one rule, show one move, and check the result before publishing.

Original authored narration plan. Read-aloud timing and rendered 60-second film remain production steps, not completed output.