Leopoldo (Leo) A. Sánchez M. teaches systematic theology at Concordia Seminary, where he also holds The Werner R.H. Krause and Elizabeth Ringger Krause Chair for Hispanic Ministries and serves as Director of the Center for Hispanic Studies. Among his research interests, Leo writes and teaches in the areas of pneumatology (Holy Spirit), Spirit Christology, sanctification, Trinitarian theology, and issues related to U.S. Hispanic/Latino theology and missions (such as immigration and other societal issues affecting Latino/a communities) and contemporary Roman Catholic theology.