Dr. Long's research interests are contemporary homiletical theory, biblical hermeneutics and preaching. His most recent book, What Shall We Say? Evil, Suffering, and the Crisis of Faith, explores questions of God and human suffering, and was named “2011 Book of the Year” by the Academy of Parish Clergy. Long’s 1989 book The Witness of Preaching—now in its second edition—is one of the most widely used texts on preaching, appearing on class reading lists in seminaries across the country and world. In 2010, Preaching magazine named The Witness of Preaching one of the 25 most influential books in preaching for the last 25 years. Long’s Preaching from Memory to Hope was named as one of the “top ten books for parish ministry published in 2009” by the Academy of Parish Clergy. 

The author of 21 books to date, Long is a frequent contributor toThe Christian Century and the Journal for Preachers, and a popular presenter at preaching conferences worldwide. He is an ordained minister in the Presbyterian Church (USA).