# Usage

- [Output format](/yq/v3.x/usage/output-format.md): Flags to control yaml and json output format
- [Path Expressions](/yq/v3.x/usage/path-expressions.md): Path expressions are used to deeply navigate and match particular yaml nodes.
- [Value Parsing](/yq/v3.x/usage/value-parsing.md): How values are parsed from the CLI to commands that create/update yaml (e.g. new/write).
- [Working with JSON](/yq/v3.x/usage/convert.md)