Lydia Willsky-Ciollo articulates how Thoreau was enmeshed in a decades-spanning project of crafting a theology of wildness. She skillfully guides readers through Thoreau’s writings and life as his theology emerges and evolves. Ultimately, theology is an active process, and interpreting the wild experience of divine revelation is the purview of all. Thoreau left the door open to his readers, who he hoped would pick up the pen where he left off and write their own theologies of wildness. With 12 black & white illustrations. U. of Notre Dame, 2026. Hardcover, 330 pp.