In this episode of my bedrock edition smp Infiniverse series, I will show you how to build a librarian trading room. I didn't put any villagers in the room yet, but the outline is there for future episodes. All in a days work in a vanilla survival world.

Villagers have five career levels that can be increased by trading with them. Each villager starts at the "novice" level. A villager's level can be seen in the trading menu. The badge they wear can also be identified: stone for a novice, iron for an apprentice, gold for a journeyman, emerald for expert, and diamond for master. Trading until the villager's trading bar gets full unlocks the next level of trades. When a player trades with a villager, both the villager and the player gain experience. All villager trades reward the player with 3–6 experience, or 8–11 experience if the villager is willing to breed. Trading with a wandering trader also rewards the player some experience, although the trader does not have experience level to gain. A villager levels up when its experience bar becomes full and gains up to two new trades, along with keeping their old ones. Additionally, a villager receives a Regeneration effect, and becomes surrounded by purple and green particles for a few seconds.

A villager's profession dictates the trading pool used to determine its trades. For example, villagers wearing straw hats are farmers, so their trades are based on the Farmer trade pool. Each profession unlocks a pre-defined and finite set of offers. Different professions are assigned to each villager based on their job-site block. This profession is indicated by their appearance and in the trading interface. Novice villagers who have not traded can lose their profession and change back into unemployed villagers if their claimed job site block is removed. Removing and then replacing a job site block can alter the trades offered, and a villager with no experience resets its trades every so often. Once a player trades with a villager, the villager keeps its profession forever and subsequently locks in the offered trades.

Villagers disable an offer after a certain number of trades, the exact number is different for each item and referenced in the tables below. When villagers work at their job site blocks, they activate their offers again, up to twice per day. When an offer is disabled, a red "X" appears in the trading interface, and the villager displays the same particle effect as an offer being created.

Each trade can be used a maximum number of times, after which the trade becomes disabled. Once trades are disabled, villagers must work at their corresponding job site block to resupply their trades.

The price of an item rises and falls depending on three factors. Items with a high price multiplier (0.2) are affected by these changes more than items with a low multiplier (0.05). All price fluctuations affect only the first item involved in trade; for example, for an initial trade of 32 sticks for 1 emerald, the price might be driven down to 1 stick or up to 64 sticks for 1 emerald, but never for 2 emeralds. Additionally, no quantity can go lower than 1 or higher than the stack size.

This video was recorded on my xbox series x in the Minecraft Bedrock Edition beta. Its played in the 1.17 caves and cliffs update version.