Line chart

Line charts show trends—the lines represent a continuous data series. This is the best way to illustrate volatility and sudden peaks and valleys.

  • Show an appropriate period of time (at least 5 items). Otherwise, it will look like a squiggle.
  • Use light horizontal grid lines to help guide the user’s eye across the chart.
  • Don’t include more than 4 lines on one chart.

Wondering if you’re using the right type of chart? See the side-by-side comparison.