The University of Minnesota Press is recognized internationally for its innovative, boundary-breaking editorial program in the humanities and social sciences and as publisher of the Minnesota Multiphasic Personality Inventory (MMPI), the most widely used objective tests of personality in the world. Minnesota also maintains as part of its mission a strong commitment to publishing books on the people, history, and natural environment of Minnesota and the Upper Midwest. Established in 1925, Minnesota is among the founding members of the Association of University Presses (AUP).