Princeton, N.J. : Princeton University Press, c2013.
xliv, 656 p. : ill., maps ; 26 cm.

"In 2012, the year 1433 of the Muslim calendar, the Islamic population throughout the world was estimated at approximately a billion and a half, representing about one-fifth of humanity. In geographical terms, Islam occupies the center of the world, stretching like a big belt across the globe from east to west."--Page vii.