KIHd seeks to improve the lives and productivity of persons with disabilities. It combines the resources of George Mason University ith local, state, regional, national, public, and private sector agencies and organizations to develop products, services, and programs for persons with disabilities. The Kellar Library is a collaborative effort between the KIHd, the Virginia Department of Education's Training and Technical Assistance Centers (TTAC), and George Mason University. The library collection consists of almost 4,000 items including books, software, videos, assessment materials, assistive technology devices, journals, kits, textbooks, and reference materials covering disabilities and special education-related topics.