In his free time, he copied books into Braille. Someone read to Louis while he made the dots. He copied the books of Shakespeare and other writers into Braille. The students read all the books and wanted more. The school did not want a fifteen-year-old boy's invention to be better than their own heavy books and would not let students read Braille books Nevertheless, the students continued to read them. Finally, after twenty years, the school agreed to use Braille.