An NFT is a digital file to which a digital certificate of authenticity has been attached. It allows to make a digital file unique. By purchasing an NFT, the collector buys exclusive ownership of the original work included in that NFT. For a buyer, the NFT allows to support an artist, to collect digital artworks and to speculate on these works. It is a market in full explosion. On the net, NFTs, these digital works of art, see their value multiplying constantly. They are more than competing with the traditional art market, and are on the way to becoming a must-have.