Logging in to StoryMaps, setting up your Cover, and adding Credits (run time: 10 min)
Go to storymaps.arcgis.com and sign in. This will take you to your Stories page. It will look something like this:
Click on Title your story to type in your title. Click below the title to add a subtitle (it's optional), and, below that to adjust your byline.
You'll notice in the upper right that there's an option to Add cover image or video.
You can also add credits to your StoryMap. Some options are to add a citation, credit others who might have worked on the project. Another possibility is to add a Creative Commons license.
Read this post from the StoryMaps blog about planning your story.
Read this post from the StoryMaps blog on great storytelling.