[WT Sharpe]

Except that audiobooks are really a completely different beast from what people normally think of as e-books (although Whispersync books are both). For that reason I'm uncomfortable placing audiobooks under the heading of e-books. Sure, you need electronics to make most of them work, with the exception of vinyl recordings played on an old hand-cranked player with a cone speaker, but when people say "e-book" I dare say the vast majority are thinking about words on a screen.