Actually, here are two codes that will give you free books so you can experience these on chain assets yourself. The first one may have expired, but try it just in case…

https://app.book.io/redeem/aifordummies/enter-code?code=2CRX-KUR7-CABF-QWKX

https://app.book.io/redeem/mysteriousislandusbookshow/enter-code?code=QD2F-UTD9-C9QX-VLVT