When louis was ten, his parents took him to a school for blind children in paris. Louis lived at the school. He was a good student and looked forward to the day when he could read. The school had some books that blind apeople could read. These book had letters that stood out. He has to feel each letter with his fingers. There was one sentence on each page. Just one part of a book weighed 20 pounds. A whole book weighed 400 bounds! By age eleven,Louis had read all fourteen books in the school. He wanted to read more,but there eere no more books. So every evening,he tried to find a way for blind people to be able to read books. One day,Captain Charles Barbier,a French soldier came to speak at the school. Barbier had invented night-writing. This system used dote for the letters of the alphabet. Soldier could feel the dote with their fingers and read with no light. Barbier thought night-writing could also help blind people.