Skill in: Basic library principles and practices; Providing effective customer service; Dealing tactfully and courteously with the public; Communicating effectively with diverse community members and co-workers; Enforcing library rules and assisting library staff with safety and security; Utilizing current technology and traditional resources to meet the informational, educational, and recreational needs of the community; Using initiative and independent judgment within established procedural guidelines; Planning, directing, and reviewing the work of assigned staff; Applying professional knowledge, skills, and flexibility to creatively develop and implement services in a rapidly changing community, professional, and technological environment; Searching print and digital reference and readers' advisory resources, including specialized materials in assigned work areas; Establishing and maintaining an effective working relationship with a variety of library customers, community groups, and others contacted in the course of the work; and. Knowledge of: Principles and practices of professional library objectives, organization, and procedures; Community needs and their relationship to public library programs and services; Reference sources and search techniques; Theory and philosophy of library services; Current reading, viewing, and listening interests of children, teens, and adults; Books, authors, online databases, and reference sources in a variety of areas and formats; Readers' advisory methods and practices; Current trends in technology and electronic resources with application to library services; Automated library information systems and equipment usage; Collection development, including book, electronic, and nonprint materials selection; and.