If your plot gets stuck, research often helps to get it moving again. Details add credibility to your story and can also provide new plot angles. It never hurts if your reader learns something along the way, whether it’s about the setting or the protagonist’s job.

For example, if you’re writing a mystery, knowledge of police procedure is important, particularly forensics. Getting it wrong will throw readers who know better out of the story and your credibility is lost. The same goes for any other profession. This is where writing what you know works best, unless you’re willing to learn about others through talking to someone or research.