Atriuum is a cloud-based Integrated Library System (ILS) solution designed to assist libraries of all sizes in managing their operations efficiently. With over 30 years of library technology and automation expertise, Atriuum offers a comprehensive suite of tools tailored to enhance the user experience for library staff and patrons. This system is particularly beneficial for libraries seeking to streamline their processes while providing a modern user interface. The target audience for Atriuum includes public libraries, K12 schools and districts, academic institutions, and special libraries that require a robust system to manage their collections, patron interactions, and administrative tasks. The software is designed to meet the diverse needs of these libraries, enabling them to effectively manage resources, track circulation, and facilitate user engagement. Specific use cases include managing eBook collections, providing mobile access to library resources, and generating customizable reports that inform decision-making. Key features of Atriuum include its configurable user interfaces, which allow libraries to tailor the look and functionality of their online catalog to better serve their patrons. The introduction of the Gallery OPAC interface enhances this experience by providing a modern, mobile-responsive catalog that showcases enriched content, making it visually appealing and user-friendly. Patrons can easily navigate the catalog, access resources, and manage their accounts through self-service options, including renewals and reservations. Atriuum also supports industry-standard protocols such as SIP2, NCIP, and Z39.50, ensuring compatibility with a wide range of library systems and services. Additionally, the integration of LDAP and Google Single Sign-On (SSO) simplifies the authentication process for users, enhancing security and ease of access. With these advanced features, Atriuum stands out in the market by offering an affordable solution that does not compromise on functionality or user experience. In summary, Atriuum is a versatile and powerful ILS that caters to the evolving needs of libraries. Its advanced features, user-friendly design, and cost-effectiveness make it a valuable tool for libraries aiming to enhance their service delivery and operational efficiency. By leveraging Atriuum, libraries can better engage with their patrons and optimize their resource management, ultimately fostering a more dynamic and accessible library environment.