If you are interested in creating and selling NFTs, you will need some basic tools and steps. First, you will need a digital wallet that supports ERC-721 tokens, such as MetaMask, Trust Wallet, or Coinbase Wallet. You will also need some cryptocurrency, such as Ether, to pay for the gas fees and the platform fees. Second, you will need to choose a platform that allows you to mint and list your NFTs, such as OpenSea, Rarible, or SuperRare. Each platform has its own features, fees, and community, so you should do some research and comparison before deciding. Third, you will need to upload your digital content, add some metadata, such as title, description, and tags, and set your price and royalties. You can choose to sell your NFTs at a fixed price, or as an auction, or as a collection. You can also choose to sell them individually, or as a bundle, or as a fractionalized ownership. Fourth, you will need to promote and market your NFTs, using social media, blogs, podcasts, or other channels. You can also join some online communities, such as Discord, Reddit, or Twitter, where you can network, collaborate, and learn from other artists and collectors.