Many graduate programs have been developed to prepare instructors for community colleges, with degrees tailored to the needs of these institutions. The Master's degree in Arts in Teaching, introduced in the late 1960s, was a significant source of well-qualified staff for community colleges. Community colleges in America are governed by a hierarchical structure with administrators receiving higher benefits than faculty and students. The administration of community colleges is complex, with presidents serving as institutional symbols, education leaders, and mediators. Faculty members are represented by union agents such as the Association of National Education and the Federation of Teachers in America. Community colleges offer various programs and services, including counseling, study skills, career planning, advising, and tutoring, to support international students. The colleges also provide cross-cultural programs to help students adjust to the U.S. academic pace and life.