In order to help you, here are some useful resources for you to look at.
Begginers guide to HBAR and cryptocurrency. (In development,
meanwhile, you can learn about Hedera and HBARS here.
How does an auction in furry.auction works? (In development,
meanwhile, you can learn check out the terms and conditions as they explain how auctions and selling works.
Guidelines for publishing an NFT in furry.auction.
"How to contribute", if you want to improve Furry Auction by reporting issues, making suggestions or improving the code.