An NFT (non-fungible “non-interchangeable”) token) simply represents ownership of an asset. Before choosing an NFT marketplace, you'll first want to decide the kind of digital asset you're interested in buying, selling, or creating. Just about anything digital -- the written word, videos, video games, art, collectors’ items, etc. -- can be tokenized on a blockchain. Another consideration is the type of tokens supported on a marketplace. NFT marketplaces are your path to start investing in digital assets, collectibles, and art, but there are lots of options out there. Be sure to choose one that suits your buying and storage needs based on the type of NFT you're after and the crypto you're interested in using for transactions. Opensea.io is the most common online marketplace for non-fungible tokens. The report includes the following parts: 1.What is NFT?? 2. Can’t just upload the digital assets instead of buying them on NFT??? 3. Some NFT marketplaces. 4. Using Opensea.io to sell and buy NFT assets. 5. Creating and minting NFT assets in OpenSea.io. 6. How to create and sell NFT on Binance NFT Marketplace. 7. How to create and sell NFT on Gate.io NFT Marketplace. 8. How to create and sell NFT on FTX.US NFT Marketplace. 9. Example on selling NFT assets on OpeanSea.io. 10. References.