This is an ER diagram of library management system. An ER diagram shows how items in a database, such as people, things, or concepts, are related to one another. Additionally, an ERD will frequently depict the characteristics of these organizations. Entities, properties, and connections form its basis. It has many symbols that employ rectangles to represent things, ovals to identify things' qualities, and diamond shapes to show connections. EdrawMax is the perfect tool to draw an ER diagram.