The first biography of Peter Matthiessen, the novelist, naturalist, and Zen roshi, whose trailblazing work championed Native Americans rights and helped usher in the modern environmental movement, by award-winning writer Lance Richardson.

Peter Matthiessen (1927-2014), a towering figure of twentieth-century American letters, achieved so much during his lifetime, in so many different areas, that people have struggled to pin him down. While ambivalent about his WASP privilege—as a teenager he demanded that his name be removed from the New York Social Register—he attended Yale and cut his teeth in postwar Paris, co-founding The Paris Review as he worked undercover for the CIA. But then, after a rebellious stint as a Long Island fisherman, he escaped into a series of wild expeditions: floating through the Amazon to recover a prehistorical fossil; embedding with an uncontacted tribe in Netherlands New Guinea; swimming with sharks off the coast of Australia. His novels, inspired by his travels, were unclassifiable meditations about Caymanian turtle hunters and frontier outlaws in the Florida Everglades. Meanwhile, his nonfiction became legendary: nature books like Wildlife in America—“key parts of the canon of emergent environmental writing,” says Bill McKibben—as well as advocacy journalism supporting Cesar Chavez, Leonard Peltier, and Native American land claims.

Underlying all Matthiessen’s disparate pursuits was the same existential search—to find a cure for “deep restlessness.” This search was most profoundly articulated in The Snow Leopard, his famous account of a 250-mile wildlife survey across the Himalayas. In True Nature, Lance Richardson reconstructs the full scope of a spiritual quest that ultimately led Matthiessen, even as he inflicted great pain on his family, to the highest ranks of Zen. Drawing on rich primary sources and hundreds of interviews, Richardson depicts Matthiessen’s life with urgent immediacy, while also illuminating how the writer’s uncanny gifts enabled him to sense connections between ecological decline, racism, and labor exploitation—to express, eloquently and presciently, that “in a damaged human habitat, all problems merge.”