70 x served & 10 x viewed
Amazon has prospered from their amazing algorithms that keep track of customer preferences. This way, they have been able to recommend books based on earlier buys and what other buyers of the same books have bought.
But today, I received a recommendation to buy two books that I already have bought from Amazon. It happens that I forget what I have bought – and even have read – but that can't be part of Amazon's algorithms – or…?
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