Books that Twin Oakers say have changed their lives or blown their minds (in no particular order, Feb 2005):

Elaine Morgan. The Descent of Woman/Aquatic Ape
Mary Daly. Gyn/Ecology.
A.S. Neill. Summerhill.
Angela Carter. Nights at the Circus.
Michael Ende. Momo.
Hermann Hesse. Siddharhtha.
Immanuel Velikovsky. Strangers and Gravediggers.
Immanuel Velikovsky. Earth in Upheaval.
Richard Bach. Illusions of a Reluctant Messiah.
Ruth Ozeki. All Over Creation.
Michael Newton. Journey of Souls.
Robert Heinlein. Stranger in a Strange Land.
Haldor Laxness. Independent People.
Daniel Quinn. Ishmael.
Jeremy Rifkin. Entropy.
Derrick Jensen. Language Older than Words.
Karcher Translation of the I Ching.
Jared Diamond. Guns, Germs and Steel.
Ursula K. Le Guin. The Dispossessed.
Ursula K. Le Guin. How to Want What You Have.
Kat Kinkade. A Walden Two Experiment: The First Five Years of Twin Oaks.
Lao Tzo. Tao Te Ching.
Riane Eisler. The Chalice and the Blade.
Elaine Pagels. The Gnostic Gospels.
Marija Gimbutas. The Civilization of the Goddess.
Alan Watts. The Wisdom of Insecurity.
Philip Slater. The Pursuit of Loneliness: American Culture at the Breaking Point.
Colin Tipping. Radical Forgiveness.
Aldous Huxley. Brave New World.
Aldous Huxley. Island.
Ernest Callenbach. Ecotopia.
Ernest Callenbach. Ecotopia Emerging.
Ayn Rand. Atlas Shrugged.
Naomi Wolf. The Beauty Myth.
John Knowles. A Separate Peace.
Omar Cabezas. Fire From the Mountain.
Albert Camus. The Plague.
Tom Wolfe. The Electric Kool Aid Acid Test.
Dr. Suess. Fox in Socks.
Marge Piercy. Woman on the Edge of Time.
Francesca Block. Weetzie Bat.
Karl Marx. The Communist Manifesto.
Karl Marx. Das Kapital.
R. M. Buck. Comic Consciousness.
Tom Robbins. All his books especially Jitterbug Perfume
Margaret Atwood. The Handmaid's Tale.
Carol Adams. The Sexual Politics of Meat.
Rami. Rami's Book.
Clarissa Pinkola. Women Who Run With the Wolves.
Cheri Huber. All her books.
Susan Campbell. Getting Real.
Harville Hendrix. Getting the Love You Want.
Parmahansa Yogananda. Autobiography of a Yogi.
Chicken Soup Team Inc. Chicken Soup for the Three Week Visitor's Soul. (just kidding)