Reformed theology is one of the major Protestant theological traditions in the United States and Western Europe, one that includes various forms of Presbyterianism and dozens of other denominations, all deeply influenced by the Genevan reformer John Calvin. Reformed Theology from A to Z is an accessible presentation of 116 theological terms and how they are understood in Reformed theology. Each entry is approximately 300 words in length, giving a clear and succinct presentation of the meaning of the term along with its understanding and use in the tradition. Designed for pastors and students, the book includes an annotated bibliography for those seeking further study.

Dr. Donald K. McKim is an honorably retired minister of the Presbyterian Church (U.S.A.). He has served as editor for Being Reformed: Faith Seeking Understanding for Congregational Ministries Publishing of the Presbyterian Church (U.S.A.). He was editor of These Days: Daily Devotions for Living by Faith (2009-2014) and has also served as editor for The Present Word and Joining the Feast in the popular "Feasting on the Word" curriculum published by Westminster John Knox Press. He was executive editor for theology and reference for Westminster John Knox Press (2000-2012); academic dean and professor of theology at Memphis Theological Seminary (1993-2000); and professor of theology at the University of Dubuque Theological Seminary (1981-1988). Dr. McKim was interim pastor of the Central Presbyterian Church in Downingtown, Pennsylvania and the Trinity Presbyterian Church of Berwyn, Pennsylvania as well as stated supply pastor of Friendship, Parish, Slippery Rock, Pennsylvania.