What is, why and how to use a block explorer

Example: ETH block explorer

Cryptopedia - glossary

Block explorer common functions

Why NFT analytics are important? (credit: Austin Baldi)

BlockChain 101 part 1 with Morgan

BlockChain 101 part 2 with Morgan

BlockChain 101 related diagrams in Figjam

Explanation on braided chains - Kadena

https://www.youtube.com/watch?v=hYvXxFbsN6I&t=1s