You should refer to these books:
"Master Bitcoin: Unlocking Digital Electronic Money", by Andreas M. Antonopoulos
"Blockchain: A blueprint for a new economy," by Melanie Swan
"Ethereum: Blockchains, digital assets, smart contracts, decentralized organizations," by Henning Diedrich:
"Business Continuity, Practice and Application of Internet Technology" by William Mougayar:
"Blockchain: Blockchain for Beginners, Blockchain Technology Tutorials and Blockchain Utilization," by Josh Thompsons: