# Number concept { "id": "S85093206", "title": "Number concept", "url": "/topics/S85093206", "kind": "topic-directory", "aeo_cohort": "topic-directory", "provider": "lcsh", "revision": "c776c44d19c99357", "catalogue_revision": "f050b5d4780b1289", "numeric_address": "867154052759307780", "address_version": "morton4x16-v1", "coordinates": [ 0, 20, 18861, 22528 ], "answer_status": "Directory metadata; local answer requires separate source review", "truth_status": "Subject descriptor, not a factual answer or a demonstrated knowledge gap" } Here are entered works on the psychology of numeration. Works on counting, including counting books, are entered under [Counting.] Works on the theory and systems of numbering are entered under [Numeration.] Directory metadata is not a factual answer or evidence of a global knowledge gap. Source: https://id.loc.gov/authorities/subjects/sh85093206 No owner-reviewed local answer yet.