The proportion of public domain content in the HathiTrust Digital Library is relatively small (approximately 16% of titles in June 2010) and typically represents material that is not widely held in the library system; as a result, the number of libraries that might hope to reduce local print management costs for these titles through negotiated agreements with the HathiTrust and shared print providers is quite low. Moreover, the age and subject distribution of titles in the public domain is not representative of academic research collections as a whole. In sum, the public domain corpus as currently defined by . copyright.
