 The Kheel Center's archive includes over 400,000 historical photographs and over of manuscript materials.The library's $1.8 million annual operating budget is funded 59% from New York State appropriations, and 36% from the ILR School, with the remainder from grants and income.The Library boasts strong holdings in the subject areas of collective bargaining, industrial relations, labor dispute resolution, labor economics and the employment relationship, labor history, contemporary trade union issues, human resource studies, organizational behavior, and international and comparative industrial relations.