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on 7 November 2013
I am not a mathematician, which means this is really heavy going for me, even in English rather than the original language. This was not expensive, but the cover is really poor. It is too flimsy and therefore provides no protection as it curls badly. It is not a major issue for me, given the reason for buying the book, but it is too shoddy for heavy use and the first time I have encountered this problem with POD books.
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