What to Sell?
If you think it's doubtful that another player will buy the item, don't put it up for auction. If you do not sell the item you will lose your deposit. You can search the current items to see what types of items are being sold and how much they are going for.

Additional Information
Shift-click item info linking can be used in the auction interface.

Minimum bid increment is set to 5% of the current sale price.

Auction notifications are sent as system messages that can be filtered in the chat interface.

Each time a bid is made on an item, a small amount of time is added to the remaining auction duration.

Recipes you already know will not show up in the auction listing if "Usable Items" is checked.

Common Questions
Where do I find the Auction House?
NPCs with a bag sign icon run the "auction house." Ask other players where to find them if you need help. They are typically located very near the bank.
If I put my item up for bid and it doesn't sell do I lose my deposit?
Yes. You will lose your deposit if the item doesn't sell.

I bought an item, how do I get it?
The item will be delivered to you in the mail. Go check your mailbox.

How do I put an item up for Auction?
Click on the Auctioneer, then click on the "Auction" tab. Drag the item you wish to auction into the special box. Set the prices and options and start the auction.

How do I check the current results of my Auction?
Click on the Auctioneer and select the Auction Tab. You can also select "Bids" to check the current status of the items you're bidding on.