- YAML is a superset of JSON and is used primarily for the creation of configuration-esque files.
- See What is the Difference Between YAML and JSON? on StackOverflow.
- Tim Anderson has a really enlightening/entertaining article on several popular serialization standards (2/2018) including YAML, JSON, TOML, CSON, and XML.
- As usual, you can find a quick reference to YAML at Learn X in Y Minutes.