--- title: For editors order: 1130 --- Content is king, and as an *editor* content is your baby. We have a few different [content sources](/editor/content-sources/) that all have their own specific use-cases, but in general content is one of: - 95% **Markdown**: Used for the vast majority of our content. - 4% **YAML**: Used for the internationalisation of our software. - 1% **HTML**: Used in specific places that don't requires internationalisation. You guessed it, if you know how to work with markdown, you are already covering 95% of all our content. As such, [our Markdown guide](/editors/markdown/) is mandatory reading for all editors. Even if you already know Markdown, you will want to make sure you are aware of all the [custom components](/editors/markdown/custom-components/) we provide. Make sure to check out the howtos on [Common tasks for editors](/editors/howtos/)