|A 1st generation Apple iPad showing iBooks, with the book Alice's Adventures in Wonderland. (Photo credit: Wikipedia)|
But if I ask whether or not the book you're reading is Alice in Wonderland, I don't care what kind of ink or paper it's printed on, or whether or not it's printed at all. As far as the reader is concerned, a book is text, not the configuration of matter used to store that text. Nobody questions whether or not an e-book can be Alice, just because Alice was originally a printed book.