|Other Retailer||Price Checked Time||Their Price in NZD||Our Price|
|Amazon UK||3 days ago||31.13||$24.26||You save $6.87|
|Amazon US||7 days ago||24.76||$24.26||You save $0.50|
David Gray is a Forex trader, but when trading platforms began to accept Bitcoins he decided he needed to research this virtual currency. What he found was a lot of confusion, so he decided to put together a book that would explain Bitcoin in a simplified way.