The HathiTrust Digital Library is the world’s largest, holding nearly 17.5 million digitized volumes from research libraries around the world. The HathiTrust Research Center, co-located here at UIUC and at Indiana University, is the research gateway to that enormous, near-universal library. This talk will briefly introduce the Center's text and data mining tools, which allow researchers to computationally analyze the millions of volumes of text held in the HathiTrust Digital Library.