Amazon and B&N suggest wildly different books

When I look at my book pages on Amazon and B&N, I find an enormous gap. B&N tells customers that people who buy The Numerati also purchase extremely heady books about math (which are way beyond me). They point them to Conceptual Spaces: The Geometry of Thought, and Foundations of Measurement, Vol II, Geometrical, Threshhold and Probabilistic Representations!

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