The broad range of issues faced by HR professionals has made involvement in professional associations and organizations ·important. For HR generalists, the largest organization is the Society for Human ·Resource Management (SHRM). Public-sector HR professionals tend to be concentrated in the International Personnel Management Association (IPMA). Other major functional specialty HR organizations .exist, such as the International Association for Human Resource Information Management (llIRIM), the World at Work Association, and the American Society for Training and Development (ASTD). A listing of major HR-related associations and organizations is contained in Appendix B.