Hybrid reading materials and methods for mentally investing readers in
reading materials. Hybrid reading materials include text reciting written
subject matter adapted to be read visually and an audio source
operatively coupled to the text, the audio source including a memory
device configured to store spoken presentation data, the spoken
presentation data supplementing the text and being distinct from the
written subject matter. Methods for mentally investing a reader in a
reading material include providing a reader with a summary document which
summarizes aspects of the reading material and providing the reader with
a spoken presentation of subject matter related to the reading material.