- The Animal Manifesto by Marc Bekoff
- The Apocryphal Gospels by Simon Gathercole (editor and translator)
- The App Generation by Howard Gardner, Katie Davis
- The Aramaic Jesus Book of Days by Neil Douglas-Klotz
- The Argument Culture by Deborah Tannen
- The Art and Life of Hilma af Klint by Ylva Hillström, Karin Eklund
- The Art of Grace by Sarah L. Kaufman
- The Art of Intuition by Sophy Burnham
- The Art of Is by Stephen Nachmanovitch
- The Art of Mindful Reading by Ella Berthoud
- The Art of Mystery by Maud Casey
- The Art of Peace by Morihei Ueshiba
- The Art of Pilgrimage by Phil Cousineau
- The Art of Power by Thich Nhat Hanh
- The Art of the Wasted Day by Patricia Hampl
- The Art of Uncertainty by Dennis Merritt Jones
- The Artist's Rule by Christine Valters Paintner
- The Ashokan Way by Gail Straub
- The Asking by Jane Hirshfield
- The Attention Merchants by Tim Wu
- The Authentic Life by Ezra Bayda
- The Awe Factor by Allen Klein
- The Barn at the End of the World by Mary Rose O'Reilley
- The Battle for God by Karen Armstrong
- The Bear Is My Father by Bear Heart, Reginah WaterSpirit
- The Better World Handbook by Brett Johnson, Brian Klocke, Ellis Jones, Ross Haenfler
- The Big Book of Christian Mysticism by Carl McColman
- The Big Book of Less by Irene Smit, Astrid Van Der Hulst
- The Big Disconnect by Catherine Steiner-Adair, Teresa H. Barker
- The Black Practice of Disbelief by Anthony B. Pinn
- The Blindfold's Eyes by Dianna Ortiz, Patricia Davis
- The Blue Hour by Isabelle Simler
- The Book of Awakening by Mark Nepo
- The Book of Forgiving by Desmond Tutu, Mpho Tutu
- The Book of Hope by Jane Goodall, Douglas Adams, with Gail Hudson
- The Book of Ichigo Ichie by Hector Garcia, Francese Miralles
- The Book of Jewish Values by Joseph Telushkin
- The Book of Joy by His Holiness The Dalai Lama, Desmond Tutu, Douglas Abrams
- The Book of Moods by Lauren Martin
- The Book of Mystical Chapters by John Anthony McGuckin
- The Book of Soul by Mark Nepo
- The Book of the Shepherd by Joann Davis
- The Book of Tiny Prayer by Micah Bucey
- The Book with No Pictures by B. J. Novak
- The Boy Who Lost His Spark by Maggie O'Farrell
- The Buddha by Philip C. Almond
- The Buddha and the Terrorist by Satish Kumar
- The Buddha Is Still Teaching by Jack Kornfield
- The Buddha Walks into the Office by Lodro Rinzler
- The Call of the Swamp by Davide Cali
- The Caregiver's Tao Te Ching by Nancy Martin, William Martin
- The Cat Way by Sara Lundberg, B.J. Woodstein (translator)
- The Cheating Culture by David Callahan
- The Circle of Life by Joyce Rupp, Macrina Wiederkehr
- The Coming Interspiritual Age by David Robert Ord, Kurt Johnson
- The Compassionate Life by Marc Ian Barasch
- The Complete Encyclicals, Bulls, and Apostolic Exhortations by Pope Francis
- The Correspondent by Virginia Evans
- The Cosmic Dance by Joyce Rupp
- The Cosmopolitan Canopy by Elijah Anderson
- The Couch in the Yard by Kate Hoefler
- The Courage for Peace by Louise Diamond
- The Courage to Teach by Parker J. Palmer
- The Courage Way by The Center for Courage and Renewal , Shelly L. Francis
- The Crusades of Cesar Chavez by Miriam Pawel
- The Daily Buddhist by Pema Sherpa, Brendan Barca
- The Dark Side of the Light Chasers by Debbie Ford
- The Day the Crayons Came Home by Drew Daywalt, Oliver Jeffers
- The Days Between by Marcia Falk
- The Death of Expertise by Tom Nichols
- The Death of Innocents by Helen Prejean
- The Death of Sitting Bear by N. Scott Momaday
- The December Project by Sara Davidson, Zalman Schachter-Shalomi
- The Deer Watch by Pat Lowery Collins
- The Desert Mothers by Mary C. Earle
- The Devotional Qur'an by Shawkat M. Toorawa
- The Dharma Bum’s Guide to Western Literature by Dean Sluyter
- The Difference a Day Makes by Karen M. Jones
- The Direct Path by Andrew Harvey
- The Divide by Matt Taibbi
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