The T&T Clark Companion to Atonement establishes a vision for the doctrine of the atonement as a unified yet extraordinarily rich event calling for the church's full appropriation. Most edited volumes on this doctrine focus on one aspect of the work of Christ (for example, Girard, Feminist thought, Penal Substitution or divine violence). The Companion is unique in that every essay seeks to both appropriate and stimulate the church's understanding of the manifold nature of Christ's death and resurrection.

The essays are divided into four main sections: 1) dogmatic location, 2) chapters on the Old and New Testaments, 3) major theologians and 4) contemporary developments. The first set of essays explore the inter-relationship between the atonement and other Christian doctrines (for example Trinity, Christology and Pneumatology), opening up yet further avenues of inquiry. Essays on key theologians eschew reductionism, striving to bring out the nuances and breadth of the contribution. The same is true of the biblical essays. The final section explores more recent developments within the doctrine (for example the work of Rene Girard, and the ongoing reflection on "Holy Saturday").

The book is comprised of 18 major essays, and an A-Z section containing shorter dictionary-length entries on a much broader range of topics. The result is a combination of in-depth analysis and breadth of scope, making this a benchmark work for further studies in the doctrine.