Library Management Database ER diagram models a complete relational schema for tracking members, staff, inventory, and loan transactions across multiple interconnected entities. The schema connects Member and Staff tables to Loan records, which reference Item inventory organized by Category and Publisher through foreign key relationships. This normalized design eliminates data redundancy and enforces referential integrity, enabling efficient queries for member loan history, overdue items, and fine calculations. Fork this diagram on Diagrams.so to customize table structures, add indexes, or adapt it for your library's specific workflows and reporting needs.