The libraries I have run--both the Stanford library and now the Harvard-Yenching--are both research libraries. They differ from other libraries in specially serving the academic community.
我主持的圖書館，不管是以前的胡佛研究所，或現在的哈佛燕京，都屬於研究圖書館，與一般圖書館不同，專門以學術界為服務對象。