Zcash and the blockchain

We are developing a beginners guide to cryptocurrencies and one of the first topics covered is the blockchain. The article focuses on using Bitcoin as an example of a blockchain technology https://www.1daydude.com/what-is-the-blockchain-simply-explained/

I would love to add a section regarding how a privacy coin such as Z cash uses the blockchain. Any pointers on the key differentiators between how bitcoin uses the blockchain v a Zcash would be welcomed. Any personnel thoughts or links to resources would be great