What are NFTs

Non-fungible tokens (NFTs) are unique, digital items with blockchain-managed ownership. Examples include collectibles, game items, digital art, event tickets, domain names, and even ownership records for physical assets.

 Everything you needed to know about NFTs, here are the links: 

https://opensea.io/blog/guides/non-fungible-tokens/

https://www.notion.so/rarible-com-FAQ-a47b276aa1994f7c8e3bc96d700717c5