There are many, many ways to market an auction. Back in the early days of auctions this normally was done with a sale bill. An auctioneer would print a sale bill listing categories of things he or she would be selling at the auction and post them at gathering spots like the local diner or the feed store. This type of marketing is still done with great success. I will spend some more time on quality sale bills in the future.
Another great way to market an auction is with a good sign. I have done well using signs to promote both my auction services but also the items I am selling.
Here is a nice video from my auctioneer friend Junior Staggs on a great money saving idea on auction signs.