An electronic book includes pages with printed materials, a display showing selectively a plurality of images and a control circuit arranged to cause pictures to be displayed in accordance with pages being viewed by a reader. In one embodiment, a sensor is used to detect which page is the reader looking at. In other embodiments, an automatic sensor or a sensor operated by the reader is used to determine what images are to be shown. Multiple images are also displayed in sequence to form moving images. In addition, speakers may also be provided to reproduce sounds.