It’s fun to peruse videos on writing and listen to what authors say about themselves and their craft. Here are some interesting short videos that help us understand how authors find their voice and who their muse is. It's best if you click on the URL to get the series that is posted.
From Reading Rockets (Children’s authors)
Isaac Asimov (My most favorite science fiction author – this was done in 1971)
Stephen King (He's the greatest inventor of story today)
There are great sites out there that will help you to better understand your craft.
Here are two: