This project is to design and develop of a library mobile application on the Android platform by following a user-centered design process. The library involved is the Glucksman Library located beside the Main Building in University of Limerick. In the library, students can access thousands of resources, such as printed books, electronic books, newspapers, journals, magazines, etc. The library mobile application will contain relevant functions about the library which will bring users' convenience and efficiency. This mobile application will contain functions such as indoor location and guide, material searching, history view, renewing, return reminder and ebooks downloading. This mobile application will help solve all problems users may meet when they are using the resources and facilities in the Glucksman Library.