Glossary
Definitions for Clean The Library terms. Shelf sections, keys, magic abilities, gamepasses, and community jargon.
Core Terms
Shelf section — Labeled zone (1A–1J, 2A–2F) where themed books belong. Endcap codes mark aisles. See shelf sections.
Hub pile — Central unsorted book stack where co-op dumps before Sort magic. Major magic — Assemble, Sort, Insight, Shelf Guide, Auto-Shelving; banned in no-magic runs.
Hint system — H key resource-limited help locating correct section. Distinct from Shelf Guide magic.
Keys & Items
Crimson Octagon — Jump height key. Golden Diamond — +3 carry key. Azure Star — +2 carry key. Emerald Club — Sprint key. Full details keys hub.
Gamepass — Robux purchase granting permanent account perks—+5 Books, Max Jump, Max Speed, Unlimited Magic, Head Start, +50 Books, VIP, Ascend. See items.
Rolimon — Third-party Roblox statistics source for badge win rates and gamepass prices cited on this wiki.
Community & Meta
Pro Mode / No Magic — Challenge clearing without major magic; 0.0% badge completion. Speed run — Timed clear targeting 1–3 Hour badges.
Easy Mode — Map difficulty option (July 2026) with relaxed book-order rules. Grand Easy clears award 2 Ascend Tokens. See Easy Mode guide.
Ascend Token — Currency from Grand Library clears (2/4/6 on Easy/Normal/Pro) spent on classes. Class / Profession — July 2026 role with spell multipliers—Apprentice through Grand Librarian on classes guide.
Retro Library / StarMarine — Clean The Library developers on Roblox. Core team credits: StarMarine (project lead), No4hhhh (programmer), Synpletic (modeler), ZHRØ (music). Arcane Library — Shorthand for inspiration title Librarian: Tidy Up the Arcane Library.
CTL — Community abbreviation for Clean The Library in guides and Discord discussions.
Related Pages
Frequently Asked Questions
What does 1A mean on Classic?
First floor section A — Studio theme (not Horror; that is 1H).
What is 2F?
Second floor Theme Parks section on Classic Library.
CTL abbreviation?
Clean The Library — common in community chat.