Apparently, there’s one part of the human brain that seems programmed to never forget things. It’s somewhere in the limbic system, and it connects smells to emotions. Perhaps this why we find sniffing books so wonderfully satisfying. Either that or we’re just suckers for vanilla. Whatever the answer, in this era of odourless ebooks, you’ll still find us with our noses buried in battered old tomes, every chance we get.

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