How to trade for bulk maps

I want to buy several dozen white maps, tier 11 to 14, for example. How do I go about that? I can't see a way to find such a trade in the external websites. Anyone have any experience of buying maps in bulk like this? Thanks.

You find someone who is selling maps, and instead of the default copy/paste you whisper them "hey i want to buy bulk xxxx maps?" and go from there.

If you are using PoE.Trade, you can do following:

1. Go to currency trading part of site
2. In "What do you want" section, go to bottom and select "Map" --> select map you want to buy --> indicate minimum available stock at bottom right of the screen
3. Select currency you want to pay
4. Click "Search"
5. Shop to your heart's content

Of course, you will have to filter out idiots trying to scam/low ball people but if you scroll a bit more down, you will usually find genuine sellers with normal price ratios for maps you desire to buy.

there are particular sites just to buy maps in bulk or using the regular poetrade or the poe trade site

https://www.pathofexile.com/trade/ Bulk item exchange -> Maps(choose the map you want) -> scroll down to enter a minimum stock -> search

or use https://poeapp.com/exchange/Legion and change it to your league.
Can be a bit difficult, if you trade with Koreans.