Braille is a special way of reading and writing for people who can't see. Instead of using regular letters like we do in books, braille uses little bumps on a page that you can touch with your fingers to read. It's kind of like a secret code that only people who know it can understand.
To become "braille literate," or able to read and write in braille, you have to practice a lot. Just like you practice your ABCs when you learn how to read, people who are learning braille start by practicing the different letters and symbols.
Once someone is good at reading braille, they can use it to do all kinds of things! They can read books, write letters, take notes in class, and even use computers.
Being able to read and write in braille is super important because it helps people who are blind or visually impaired be independent and have access to information just like everyone else.