> For the complete documentation index, see [llms.txt](https://b-greve.gitbook.io/beginners-guide-to-clean-data/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://b-greve.gitbook.io/beginners-guide-to-clean-data/missing-data-1.md).

# Missing data

- [Missing values](https://b-greve.gitbook.io/beginners-guide-to-clean-data/missing-data-1/missing-values.md)
- [Missing value patterns](https://b-greve.gitbook.io/beginners-guide-to-clean-data/missing-data-1/missing-value-patterns.md)
- [Missing value representations](https://b-greve.gitbook.io/beginners-guide-to-clean-data/missing-data-1/missing-value-representations.md)
- [Missing observations](https://b-greve.gitbook.io/beginners-guide-to-clean-data/missing-data-1/missing-observations.md)
- [Truncated exports](https://b-greve.gitbook.io/beginners-guide-to-clean-data/missing-data-1/truncated-exports.md)
- [Handling missing values](https://b-greve.gitbook.io/beginners-guide-to-clean-data/missing-data-1/handling-missing-values.md)