The library is the heart of the school. Gagan Public School has a well-equipped and spacious library having a wide range of books. It subscribes to a number of books, magazines, English and Hindi newspapers. A student can get the required number of books by depositing a very nominal fee. This takes off the burden of purchasing books from the shoulders of the students. Gagan Public School promotes the culture of self-study to reinforce what has been taught in the class. Books published by different publishers are much more useful and beneficial to keep the knowledge of students as well as teachers updated.