You know those ads that puzzle you and leave you examining them, trying to understand what they're saying? They've just grabbed a chunk of your attention.

(And a lot of ads, these days, are designed to leave a memory of the product, preferably associated with an emotion, lodged in your sub-conscious. Not to sell you outright, but to be there, lending familiarity, when you are at the point of selection and purchase.)

Anyway, I wonder whether the difficult to read spines are more noticeable and so grab desired attention in certain contexts.

Or, they just have a crappy graphic designer. ;-)