- You can use color to highlight what you want the reader to focus on 2nd chart. An annotation might be a good small modification to elect to make to your d3 graphic of choice. Another example might be annotating an outlier.
- If there is something you have in mind, you might be able to google and find someone's example (you don't have to be limited to the examples I provided). For example, this is known as a ternary plot and if you just google "ternary plot D3" you'll find some examples of plots just like it.
- Hed and Dek tell a story. Sometimes its a good idea to have a chart that can also stand alone.
- Putting different subsets of the data side by side in two charts can help you compare and contrast
- You don't have to visualize the whole dataset. One dataset can contain many stories. It might be easier to pick just one. See Uber project
- Label your axes (or at least mention the units of measurement in the text).
- Cite your sources.