[1] He has authored and co-authored several books that deal primarily with the history and cultural impact of the Restoration Movement.

In February 2000, Leonard Allen founded Leafwood Publishers, a publisher of Christian books on a variety of topics, including theology, culture and dealing with the study of the Bible in Orange, California.

In 2005, Abilene Christian University Press purchased Leafwood Publishers and hired Leonard Allen as its director.

In April 2014, Lipscomb University announced their decision to bring Leonard in as their new Dean of Bible.

Harding School of Theology (1975) Ph.D. University of Iowa (1984) Leonard is married to Holly Allen.