Zero: The Biography of a Dangerous Idea http://www.amazon.co.uk/Zero-Biography-Dangerous-Charles-Seife/dp/0285635948%3FSubscriptionId%3D0R4R2DRX8WCTQCB26W02%26tag%3Dsnailbyte-21%26linkCode%3Dxm2%26camp%3D2025%26creative%3D165953%26creativeASIN%3D0285635948 http://www.wajapi.com/books/show/486 Charles Seife http://ecx.images-amazon.com/images/I/41GF74C9J2L._SL75_.jpg http://ecx.images-amazon.com/images/I/41GF74C9J2L._SL160_.jpg http://ecx.images-amazon.com/images/I/41GF74C9J2L.jpg Wed Jun 24 15:41:57 +0100 2009 2009, 06, numbers, mathematics