- Master of You by Cate Stillman
- Materiality as Resistance by Walter Brueggemann
- Maxims for Mutuality by Philip Cunningham
- May I Have This Dance? by Joyce Rupp
- Maybe Tomorrow? by Charlotte Agell
- Meditations with Cows by Shreve Stockton
- Meeting God by Stephen P. Huyler
- Meeting Trees by Scott Russell Sanders
- Meetings with the Archangel by Stephen Mitchell
- Meinrad Craighead: Crow Mother and The Dog God by Meinrad Craighead
- Meister Eckhart's Book of Secrets by Mark S. Burrows, Jon M. Sweeney
- Meister Eckhart's Book of the Heart by Jon M. Sweeney, Mark S. Burrows
- Meister Eckhart’s Book of Darkness & Light by Jon M. Sweeney, Mark S. Burrows
- Memories of Muhammad by Omid Safi
- Merciful Meekness by Kerry Walters
- Messages from Amma by Janine Canan
- Milton H. Erickson, M.D. by Betty Alice Erickson, Bradford Keeney
- Mindfully Green by Stephanie Kaza
- Mindfulness by Annabel Laity
- Mindfulness by Joseph Goldstein
- Mindfulness in the Garden by Zachiah Murray
- Miracles and Wonder by Elaine Pagels
- Mirrors by Eduardo Galeano
- Moment to Moment by Amy Sander Montanez
- Momfulness by Denise Roy
- Moody Cow Learns Compassion by Kerry Lee MacLean
- Moon Bath by Dakota Hills, Sierra Brashear
- More than Words by Roz MacLean
- More Together Than Alone by Mark Nepo
- Morning, Noon, and Night by Arnold Weinstein
- Motherprayer by Barbara Mahany
- Mr. Zinger's Hat by Cary Fagan
- My Baba's Garden by Jordan Scott
- My Body and Other Crumbling Empires by Lyndsey Medford
- My Friend Andy by Emma Chinnery
- My God and I by Lewis B. Smedes
- My Grandfather's Blessings by Rachel Naomi Remen
- My Legs Were Praying by Or N. Rose, Dov Peretz Elkins
- My Life in Jewish Renewal by Edward Hoffman, Zalman M. Schachter-Shalomi
- My Life in Seventeen Books by Jon M. Sweeney
- My Monastery Is a Minivan by Denise Roy
- My Neighbor Is a Dog by Isabel Minhos Martins
- My Shoes and I (Mis Zapatos Y Yo) by Rene Colato Lainez
- Mystical Courage by Cynthia Bourgeault
- Naikan by Gregg Krech
- Naked Spirituality by Brian D. McLaren
- Natural Brilliance by Irini Rockwell
- Nature's Way by Ed McGaa, Eagle Man
- Navigating the Tides of Change by David La Chapelle
- Never Say a Mean Word Again by Jacqueline Jules
- Never Say Die by Susan Jacoby
- Nickel and Dimed by Barbara Ehrenreich
- Night on the Sand by Monica Mayper
- Nine Lives by William Dalrymple
- Ninety-Nine Names of the Beloved by Camille Helminski
- No Death, No Fear by Thich Nhat Hanh
- No One Cares About Crazy People by Ron Powers
- No One Left Alone by Liz Walker
- No Ordinary Apple by Sara Marlowe
- No Time Like the Present by Jack Kornfield
- No Time to Lose by Pema Chodron
- No World Too Big by Lindsay H. Metcalf, Keila V. Dawson, Jeanette Bradley
- Noah Builds an Ark by Kate Banks
- Non Obvious Megatrends by Rohit Bhargava
- North for the Winter by Bobby Podesta
- Not for Sale by David Batstone
- Notes from the Edge Times by Daniel Pinchbeck
- Notes on the Need for Beauty by J. Ruth Gendler
- Noticing the Divine by John R. Mabry
- Nourishing the Spirit by Evelyn Eaton Whitehead, James D. Whitehead
- Nurturing the Soul of Your Family by Renee Peterson Trudeau
- Oak and Lotus by Kenneth McIntosh
- Observing Spirit by Peter Rhodes
- Occupy Spirituality by Adam Bucko, Matthew Fox
- Ojiichan's Gift by Chieri Uegaki
- On Looking by Alexandra Horowitz
- On Repentance and Repair by Danya Ruttenberg
- On the Brink of Everything by Parker J. Palmer
- On the Hippie Trail by Rick Steves
- On the Road with Rabbi Steinsaltz by Arthur Kurzweil
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