Misleading graphs are data visualizations that distort the truth through techniques like truncated axes, inconsistent scales, cherry-picked time ranges, or manipulated aspect ratios to create false impressions and lead viewers to wrong conclusions.
"A bar that looks $3\times$ taller might only represent 10% more data if the axis doesn't start at zero. It's like taking a photo from a weird angle to make someone look taller. The data is true, but the picture lies."
Why it matters: Misleading Graphs matters because the way data is displayed controls what viewers notice first. A good display makes the comparison honest and readable; a poor display can hide variation, exaggerate a difference, or make the wrong question look answered.