BOOK
1 trade involving this item across 1 profession.
View on Items Database →Book in villager trading
Book is a raw-material trade: villagers pay emeralds for it, which makes it a candidate for an automated emerald farm rather than something you purchase back.
Book is paper-based stock that feeds into the Librarian and Cartographer economies.
Only the Librarian deals in it, so any trading hall that supplies Book is built around that one profession. Book can also be obtained outside of trading, but buying it from a villager is often faster than gathering or smelting the ingredients yourself.
Villagers that buy Book(you give Book, get emeralds)
| Profession | Level | You Give | You Get | Edition |
|---|---|---|---|---|
| Librarian | Apprentice | 4x Book |  1 Emerald |
Who trades Book, and at what price
To sell Book for emeralds, bring it to a Librarian at the Apprentice tier (4 units per 1 emerald).
Is trading Book worth it?
On the supply side, Book is worth one emerald per 4 units at its best rate (the Librarian). That ratio is what decides whether farming book for currency is efficient: the fewer units a villager demands per emerald, the more valuable each one is to produce. A buy slot like this can be used 12 times before it locks and the villager has to restock, capping how many emeralds one villager returns per cycle before it must work at its job site again.
Since no villager sells book back, this is a one-way emerald faucet: you supply the book, the villager supplies the emeralds. That makes it a prime candidate for an automated trading hall, where a renewable source of book feeds a row of villagers and steadily converts your surplus into currency you can spend on the gear and rare items other professions sell.
How Book trading works
Every Book trade follows Minecraft's standard supply-and-demand rules. A trade can be used a limited number of times — 12 for the slot in question — before it greys out and locks until the villager restocks. A villager restocks up to twice per in-game day, but only if it can path to its job-site block and "work" there, which is why a trading hall must leave the workstation reachable.
When you sell book to a villager, completing that trade is what grants the villager career experience and pushes it toward its next tier. Spreading sales across several villagers of the same profession multiplies both your emerald throughput and how quickly the hall levels up.
One caution: the first trade you complete with a fresh villager permanently locks its current offers, including the book slot at whatever price it rolled. If you are chasing a specific price, decide before you trade, because there is no re-rolling a villager once it has done business with you.
Tips for trading Book
- Best rate when selling it: the Librarian gives an emerald for just 4 of thems, the most generous buy rate for book.
- Lock the price: once you complete a trade the offer is fixed, so a cheap roll of book stays cheap for that villager. Reset only happens on never-traded Novice villagers via the rolling method.