To create and sell NFTs, you need to follow these steps: 1. Create a unique asset with distinguishable metadata and identifiers. 2. Set up a smart contract on the blockchain following the ERC-721 standard. 3. Determine the uniqueness of the asset, as the value of an NFT depends on its uniqueness rather than the effort put into creating it. 4. Convert real-world assets into non-fungible tokens if needed. 5. Choose a platform to mint and sell your NFT, such as open marketplaces like OpenSea or proprietary marketplaces. 6. Once minted, promote your NFT through various channels to attract buyers. 7. When selling, ensure you understand the platform fees and any royalties you may receive from secondary sales. 8. Keep track of your NFT sales and engage with the community to build your reputation as an NFT creator.