JPJA is the first NFT book. The author, JP Janssen, is also the creator of OLGA which is the first NFT by definition.
The book is called "The Economics of Bitcoin"
JPJA is likely also the first DEFI contract. For more information on this please read here :
https://jpjanssen.com/jpja-2014-book-nft-defi-pioneer/
https://twitter.com/jp_janssen
View contents of NFT by expanding Properties Below and at Emblem.Finance 👇
[View this NFT on Emblem.Finance](https://emblem.finance/nft?id=58805479408804451)
XCP Explorer: [1DpsiG22UN66gDTVEtRb2h1TBi6YTb1dif](https://xchain.io/address/1DpsiG22UN66gDTVEtRb2h1TBi6YTb1dif)