3. 電子書銷售統計 ( 美國 ) US Trade Wholesale Electronic Book Sales 2010 Sales "OFF THE CHART" vs. Previous Quarters Q1 10 Sales=$91.0 M eBook sales statistics for May 2010 have been released from the Association of American Publishers (AAP) who collects these statistics in conjunction with the IDPF.Trade eBook sales were US $29,300,000 for May, a 162.8% increase over May 2009 ($11,200,000). Calendar Year to Date sales are up + 207.4% 資料來源 : www.idpf.org