Chart picker
Data type → recommended visualization
What are you showing?
Rule: the chart answers a question. 'How did it change over time?' — line. 'Who's bigger?' — bars. 'What share?' — 100% stacked. Don't decorate — clarity beats beauty.
Recommendation
Recommended: Line chart
Why: Time axis reads left-to-right; multiple lines compare series.
Avoid: Pie chart — doesn't show dynamics. Bars ok only for <10 points.