| 摘要 |
<p>A book (1) is described. The book has front and back covers (2, 3) and a plurality of pages (5) bound between the covers. The book includes capacitive touch elements (9) disposed on the inside (10, 14) of the back cover and/or the front cover. The book also includes at least one output device (7), such as a speaker, and a controller. The controller is configured to cause the or at least one of the output devices to output a signal in dependence upon position of a user's digit on a page overlying the cover.</p> |
