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The menu board at a local cafe provides a fun example of the failure to apply the mapping principle:

...continue reading "Which is bigger, small or grande?"

A while ago, if you wanted to get vitamin C from Boots (a British pharmacy chain), you would be presented with choices like these:

It is hard to see (and not just because the image is low resolution) that in one of these containers you would find orange-flavored tablets, while those in the other would be blackcurrant-flavored.  Many customers failed to notice these flavor labels and brought home a product that was not what their loved one wanted.  This design failed to prevent customers from making a mistake.

...continue reading "“I hate blackcurrant!”"

The handles for operating the sink and the shower valves in Statler Hotel bathrooms use nearly identical design language:

But they do different things!  In the sink, the two handles control the amount of hot and cold water, respectively.  In the shower, however, the left handle controls the volume of water while the right one is used to control the temperature: ...continue reading "Statler Hotel bathroom"