The Academy of Persian Language and Literature is a special group of people who work together to protect and help the Persian language and its literature, which means all the books and stories written in Persian. They want to make sure that people continue to use Persian and understand all the important things written in it throughout history.
Just like how your mom and dad may teach you how to speak properly and use good grammar so that you can communicate better, the Academy works to set rules and standards for how the Persian language should be used so that people can understand each other better.
They also study old and new stories and poems to learn more about the Persian language and its culture, which means all the special things that people do in that part of the world. They sometimes even make new words if they think they are needed in order to explain something better in Persian.
Think of the Academy like superheroes who are making sure that the Persian language is always protected and continues to be used in the best way possible!