This collection of essays on the occasion of the Moltmanns' 60th birthdays is very nicely arranged so that one follows logically from the other to acknowledge main points in Moltmanns' theologies at that point in time (1986). The "Theology of Hope" was published in 1964, and was influenced by Whitehead's process metaphysics--which I was introduced to that same year. So it was a pleasure for me to pick up some of those threads after all this time. Moltmann's basic idea is that God's sacrificial love is the basis for human hope. From this belief, each essay examines how this same love of God can become embodied historically in the Christian community, countering all forms of death. It is a good introduction to Jurgen Moltmann's early theology. Also interesting to recall that Elisabeth Moltmann -Wendel was publishing work on feminist theology at that time. All of the essays are by professors of Protestant theology in the U.S., Argentina, and England.
This was a really interesting read. Really great essays in conversation with both Moltmann and Moltmann-Wendel. But if you're expecting a sort of explanation or summary comparison of their theology, you may be disappointed. These essays certainly have Moltmann and Moltmann-Wendel in mind, but they're less interested in explaining their theology and more interested in conversing with it and advancing it.