The full title of this excellent reference book is New Dictionary of Theology: Historical and Systematic, Second Edition (IVP Academic, 2016). The title informs us that there was a first edition. Here’s how the editors explained the need for a second.
“Many students and readers have expressed their appreciation for the New Dictionary of Theology (1988). As the second of the dictionaries produced by IVP (the first being the New Bible Dictionary in 1962), it has been a trustworthy and informative guide. After almost thirty years, however, there are many new writers, issues and themes on the agenda, for theology does not stand still, and this second edition therefore has over 400 new articles. Many of the existing articles have been expanded and amended, and almost all have additional bibliographical references.”
The editors (Martin Davie, Tim Grass, Stephen Holmes, John McDowell, T.A. Noble) mentioned that they tried to give more attention in the mainly British publication to theological writers and themes in North America and around the world. The editors also pointed out that because of the publication of IVP’s New Dictionary of Biblical Theology in 2000, the New Dictionary of Theology: Historical and Systematic, Second Edition, would be more specifically a dictionary theology from a systematic and historical perspective.