The August book of the month is actually a group of books, all “The Story of Phi” particular numbers. These books include a social history as well as the mathematical history.

*e: The story of a number* by Eli Maor, first published in 1993 and republished in 1998 by Princeton University Press.

*An Imaginary Tale: The story of √-1* by Paul Nahin, first published in 1998 and republished in 2007 by Princeton University Press.

*A History of π* by Petr Beckmann, first published in 1970, republished in 1976 by St Martin’s Griffin.

*Zero: The biography of a dangerous idea* by Charles Seife, published in paperback in 2000 by Penguin.

*The Golden Ratio: The story of phi, the world’s most astonishing number* by Mario Livio, first published in 2002, in paperback in 2003 by Random House.

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