The works of Alfred North Whitehead (1861-1947) and Pierre Teilhard De Chardin (1881-1955) continue to inspire distinctive trajectories in theology and philosophy. Although contemporaries for a time, both men were unable to benefit from each other's vast cosmological visions, and they continue to be studied largely independent of each other's contributions. What results when Whitehead and Teilhard meet? What do they each offer the other such that a mutual deepening might take place? What is their shared relevance to contemporary concerns across philosophy, science, religion, and ecology? The first of its kind, this book draws together key Whitehead and Teilhard scholars to advance the possibilities of process philosophy and theology through an integrative encounter between these two foundational figures.