In recent years, governments in many countries have been promoting digital archives, storing vast numbers of books and documents as electronic files, providing a core source of content for e-readers.
近年來，各國政府大力推動「數位典藏」計畫，將大量書籍與歷史文獻轉為電子資料庫，為電子書的內容供應提供了基礎。