Here's a link to the preface/the starting point for this set of articles etc.: http://cnx.org/content/m37432/latest/?collection=col11294/latest And from it, the following bit of content: "Summary: Blind students should not be excluded from physics courses because of inaccessible textbooks. The modules in this collection present physics concepts in a format that blind students can read using accessibility tools. These modules are intended to supplement and not to replace the physics textbook. " Stay well Jacob Kruger Blind Biker Skype: BlindZA '...fate had broken his body, but not his spirit...'