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You asked: "How would they know this, I wonder." I understand that the police stops cars with child seats during awareness campaigns and check whether the seats are correctly installed.

I couldn't understand the first such ad, even though I see graphs everywhere. It took me 2-3 viewings to understand what they were suggesting a chart and then quite some time to understand it. It would have been better to have pictures of four kids in child seats.

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Marketing analytics and data visualization expert. Author and Speaker. Currently at Columbia. See my full bio.

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