Publish Rules are like conditions that you define for your content publishing. They govern if entries can be published with or without someone’s approval or only when the content is at a particular stage.
For example, you can define a publishing rule that every entry first needs to be approved by John Smith. Unless John Smith approves it, the entry cannot be published.
Alternatively, if you define that the stage should be Complete to be published, the entry will not be published unless the Complete stage is reached. We will learn more about Publish Rules later in the document.