Renáta Németh, Dávid Simon
(Supplementary reading: Darrell Huff: How to lie with statistics?)
Or in less forceful wording: how can charts mislead the readers?
Shrinking/stretching the chart
Highly affects the intuitive interpretation. The previous chart after horizontal shrinkage:
It gives the impression of a steep increase. If, on the contrary, the chart is stretched horizontally, the picture shows a slow increase: