Monday, March 14, 2016

Pi Day savings (32%) from the National Academies Press

The National Academies Press
In case you haven’t already guessed, today we’re celebrating Pi Day! Our love for this irrational holiday is constant, so today only we’re offering 31.415 (32%) off our math titles and merchandise. Unlike Pi, this sale won’t last infinitely so make your purchase by March 21. Enter code PIDAY at checkout to receive this discount.

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