"By providing state of the art, accessible audio textbooksto students, Learning Ally removes a major obstacle to their success in the classroom: access to the printed word. The books provide extensive navigation, bookmarking and control features that are critical to successful studying."
http://usodep.blogs.govdelivery.com/2011/10/19/students-with-visual-and-learning-disabilities-thrive-with-accessible-audiobooks-from-learning-ally/