Book excerpt: Friendship is an outcome of, as well as a condition for, advancing interfaith relations. However, for friendship to advance, there must be legitimation from within and a theory of how interreligious relations can be justified from the resources of different faith traditions. Friendship Across Religions explores these very issues, seeking to develop a robust theory of interreligious friendship from the resources of each of the participating traditions. It also features individual cases as models and precedents for such relations--in particular, the friendship of Gandhi and Charlie Andrews, his closest personal friend. Contributors: Balwant Singh Dhillon, Timothy J. Gianotti, Alon Goshen-Gottstein, Maria Reis Habito, Ruben L. F. Habito, Ryan McAnnally-Linz, Stephen Butler Murray, Eleanor Nesbitt, Anantanand Rambachan, Meir Sendor, Johann M. Vento, and Miroslav Volf