Demo
For this example, the illustration is in seeing a trend in the cost of genome sequencing. The data is from https://github.com/datasets/genome-sequencing-costs
You can view this graph on https://christieewen.github.io/
Inspired by Tiny Data Visualization by Matthew Strom. Check out his slides http://slides.com/matthewstrom/tinycharts#/13 Slide 13 shows miniature graphs using real data rather than numbers.