Plustek helps you create audio books.

"Do scanners merely turn printed text into digital format? Apparently the answer is no, as the ‘BookReader’ launched by Cerritos, CA-based manufacturer Plustek Technology Inc also reads the book for you. Mainly aiming at visually impaired users who still want to read books, the device not only uses the optical character recognition software to convert printed books or documents into digital formats, but adopts the text-to-speech recognition software to translate them into audio files. So simply put a book page on the scanner, press the button and then you can listen to the page. That’s cool!
The device could scan in three different modes: plain text, a grayscale PDF scan and a color scan." inewidea.com