Tutorials/Villager trading hall

This guide seeks to teach the player how to create a villager trading hall.

Purpose
Villager trading halls maximize the number of villagers that can be easily reached. They also provide a way to quickly discard unwanted villagers and replace the ones that are discarded. They can take the form of a literal "hall", with villagers lined up and waiting for the player to trade with them.

Mechanics
There are three parts to a villager trading hall: the input, storage, and output.

Input
The villagers for a trading hall generally come from a villager breeder. A source anywhere else is impractical given the amount of effort exerted to transport villagers out of a village.

The mechanism that puts the villager into the hall must be able to close off the cell once the villager enters, to prevent more villagers from entering that cell. The mechanism must then open the next cell to allow for a villager to enter.

Storage
Sometimes, the player will want to keep a villager because it has valuable or worthwhile trades. These villagers must be accessed, so they stay in separate "cells" until a better villager comes along; at which point the player may wish to discard them. They must be protected from zombies, lightning, and other things that could bring harm to them. The villagers must also have workstation blocks nearby, so that they can restock their trades.

Output
A villager may come along with undesirable trades, or no trades at all. Also, a better villager might come along that would replace one that already exists in the hall. At this point, the player may wish to discard the villager, and the trading hall must provide a way to do so.

This discarding mechanism must be able to remove the villager from the cell and then open it up to allow for more villagers to drop in.

Once a villager is discarded, it is up to the player to do what they want with them. The most common thing to do is move the discarded villagers into one area, where they are killed by whatever means suits the player. It is not recommended to kill them manually, because that will lower the player's popularity, and if the popularity gets too low, any iron golems of that village become hostile toward that player. An alternative to killing the discarded villagers is to store them for an iron golem farm, put them into a village, or put them to work in farms and breeders.

Designs
Designs come in all shapes and sizes, but they all have the same basic parts, as described above.

Note: These videos are outdated as most of design not work after the Village & Pillage Update, due to villagers needing to work with their corresponding job site block to resupply their trades and can only resupply up to twice per day. Also, villagers now need to level up to unlock new trades.

Mysticat's Design
Here is a 1.16 design that is super compact, low resource, and infinitely tileable

Tango Tek's Design
(Java Edition only; does not work on Bedrock)

LogicalGeekBoy's Design (after village and Pillage update)
(Java Edition only)

Useful Villagers
Butcher:

Butchers buy raw meat for emeralds. Very useful if you have animal farms. They also buy dried kelp blocks and sweet berries, easy-to-farm items. They sell cooked meat, which is useful if you don't want to use your coal, wood, or lava for cooking food.

Farmer:

Farmers buy crops for emeralds. The best to trade are carrots and potatoes, because using fortune on the crop gives more carrots and potatoes respectively. This doesn't work on wheat or beetroot, as it only drops more seeds.

Fisherman:

To a beginning player, a fisherman's trades can be expensive, such as the villager buying coal and string for emeralds. However, they can cook fish for you and sell campfires. A master level fisherman will buy a boat for an emerald, meaning that 2 logs can get you an emerald. Also, 3 emeralds can be used to buy a bucket of cod. A bucket is worth much more than 3 emeralds.

Librarian:

Until you have a very good sugarcane farm, the librarian's paper trade won't be worthwhile. However, one librarian can sell up to 3 enchanted books, which can be useful early game. You can enchant tools with an anvil, or disenchant them to get bonus experience.

Cleric:

Clerics sell exotic items, such as redstone, lapis lazuli, glowstone, and bottles of enchanting. They buy rotten flesh, which is a good way of getting rid of your accumulated rotten flesh. It is not recommended to depend on a cleric for emerald, because gold and nether wart are hard to farm, especially early game. Stone Mason:

Stone Masons buy clay, stone, and other rocks. It is a way of getting a lot of emeralds, as you get lots of cobblestone when mining. However, don't trade too much clay and other rocks, as other rocks are hard to farm until you have a bartering farm. You need quartz to craft other rocks. Clay is not renewable in BE.

Shepherd Leatherworker Cartographer Fletcher

Toolsmith Weaponsmith Armorer

How to decorate your trading hall
教程/村民交易大厅