The Librarian is a villager profession in Minecraft that specializes in trading books, enchanted books, and other knowledge-related items. It uses the Lectern as its job site block, which allows unemployed villagers to take on the profession when placed nearby.
Trades include bookshelves , regular books , paper , and clocks , but the main trade is enchanted books , which allow players to obtain powerful enchantments for tools, weapons, and armor.
They progress through five levels— Novice , Apprentice , Journeyman , Expert , and Master —unlocking better trades as they gain experience. They can be leveled up by trading emeralds , paper , books , and ink sacs .
Librarians can be zombified and cured to reduce trade costs, making them useful in trading halls. They spawn naturally in villages but can also be assigned the profession by placing a Lectern near an unemployed villager.