Olson's biographer, David Backes, recommends the following three books as representative:
"The Singing Wilderness" (1956)
The book contains his most consistently poetic writing and best captures what I described in the biography as his land aesthetic. It's probably the most consistent because it was his first, and some of the essays had decades of thought and earlier attempts behind them. It was the book that made him famous.
"Listening Point" (1958)
"Listening Point" best illustrates his land ethic, as he describes the process of finding his beloved property on Burntside Lake, choosing what kind of structures he was willing to put on it, and the care he took as he put the structures in, along with a simple dirt road. He also relates it to wilderness, especially in the classic essay "The Whistle," in which he discusses the relationship between wilderness and civilization. His is the land ethic of someone who believed we can hold true to ideals without being ideologues.
"Reflections from the North Country" (1976)
"Reflections from the North Country" best displays Sigurd's beliefs about nature and the human spirit. It is his most philosophical book, and it ranks second in sales. Much of the book is adapted from speeches he gave in the 1960s and 1970s.
Quotes
Sigurd Olson, in his words: