The role of online library in education is many. In most cases, teachers deliver copies of the lectures online or directly to students at the beginning of the class, allowing them to read with full attention. Books , research papers or articles can also be read from the online library , in many cases there is no price to pay for it. As a result, the field of acquiring knowledge of students is now very wide. And by extracting information from different places and creating a work, the work of the students is different which was not there before.