In this chapter, we covered the following popular security token standards: ERC-1400/ERC-1410, R-Token, DS-Token, SRC-20, ST-20, S3, ERC-884, ERC-1450, and ERC-1404. Although we only talk about the security token fundamental, I hope it can help you to enrich your knowledge of security token protocols. We have learned the basics of Solidity programming and we understood the basic syntax of smart contracts.
In the next chapter, we will continue our learning journey: we'll start to build a security token Dapp and write a smart contract based on one of the security token protocols we've discussed.