22. A mobile device, comprising: an image sensor configured to perform an optical capture from a book; an identification subsystem that is configured to identify the book from the optical capture by at least: identifying a text fragment within the optical capture, and locating a position in the book containing the identified text fragment; a retrieval subsystem configured to retrieve a media sequence associated with the book; and a display subsystem configured to present the retrieved media sequence by at least presenting the retrieved media sequence at a time in the media sequence that corresponds to the located position in the book.
27. The mobile device of claim 22 , wherein the presented media sequence contains all words of a contiguous portion of the book, and wherein the contiguous portion comprises multiple words and includes the text fragment.