"The genesis of this project came about from conversations in 2013-2014 within the academy concerning the condition and future of university press publishing and, in particular, the academic monograph, which is an essential component of scholarly communications and which also plays a role in the credentialing of scholars. There was at that time only anecdotal information on how many monographs university presses published and, hence, no obvious way to measure the size and scope of university presses and the certification system they help to support ("Do university presses publish too many books? Too few? Do they support some fields more than others?"). In order to get some data to assist in other explorations into the university press world, Mellon asked us to tabulate the output of university presses; that tabulation lies at the center of this report."