In
The Overstory, Powers writes in the tradition of environmental literature. Perhaps the most famous works in this genre are Henry David Thoreau’s
Walden and Rachel Carson’s
Silent Spring, the latter of which had a major impact on the environmentalist movement in the 1960s after alerting the world to the dangers of certain pesticides. Powers even quotes Thoreau several times in
The Overstory. Similarly, Patricia Westerford’s book
The Secret Forest is based on Peter Wohlleben’s
The Hidden Life of Trees, a popular nonfiction book about how trees communicate with each other. Other contemporary works of eco-fiction—that is, fiction focusing on nature and environmental issues—are Ursula K. Le Guin’s
The Word for World is Forest and Octavia Butler’s
The Parable of the Sower. Powers himself is known for using fiction to discuss issues usually reserved for non-fiction, like computer science, musical composition, and in
The Overstory’s case, environmentalism. These other works include
The Gold Bug Variations,
The Echo Maker, and
Orfeo.