Books
Books are sub-divided by category to give you a better sense of what they speak to (although there is obvious overlap which makes it difficult to place many in a single category).
Cosmology/Philosophy
Ishmael – by Daniel Quinn (and other Quinn books)
The Universe Story – by Brian Swimme and Thomas Berry
The Great Work – by Thomas Berry
The Dream of the Earth – by Thomas Berry
Eco-pyschology: Restoring the Earth, Healing the Mind – Various
World As Lover; World As Self – by Joanna Macy (and other Joanna Macy work)
Thinking Like A Mountain – by various
Holistic Human Development & Healing
Continuum Concept – by Jean Liedloff
Soulcraft - Bill Plotkin
Nature & The Human Soul - Bill Plotkin
Facing the Wolf - Theresa Alexander
Reclaiming Your Life - Jean Jensen
The Disobedience of the Daughter of the Sun – Martin Prechtel
Mysticism, Sprituality & the Earth
Tao Te Ching – various translations (try Stephen Mitchell)
The Power of Myth – Joseph Campbell
The Hero with a Thousand Faces - Joseph Campbell
Spell of the Sensuous – David Abram
Dharma Gaia: A Harvest of Essays on Buddhism & Ecology – edited by Allan Badiner
Rebirth of Nature – by Rupert Sheldrake
Nothing Special, Living Zen - Joko Beck
Indigenous Wisdom
Original Wisdom – by Robert Wolff
Black Elk Speaks – by John G. Neihart
Voices of Our Ancestors – by Dhyani Ywahoo
Return to Creation – by Medicine Story
Of Water & Spirit – Malidoma Some
Nature Awareness
The Vision – by Tom Brown Jr
Journey to the Ancestral Self – by Tamarack Song
The Earth Path – by Starhawk (and other Starhawk books)
Contemporary Perspectives
Endgame Vol I&II – by Derrick Jensen (and other Jensen books)
Wisdom of the Elders – by Suzuki & Knudtson
The Last Hours of Ancient Sunlight – Thom Hartmann
Ascent of Humanity – by Charles Eisenstein
In the Absence of the Sacred – by Jerry Mander
Dumbing us Down – John Taylor Gatto
Deschooling our Lives – Matt Hern
Poetry & Fiction
Earth Prayers from Around the World – by Elizabeth Roberts and Elias Amidon
The Practice of the Wild - by Gary Snyder
Wild Geese - by Mary Oliver
The Selected Poetry of Robinson Jeffers - by Robinson Jeffers
Rilke's Book of Hours – Rilke (and other Rilke poetry)
David Whyte - Various
Rumi - Various