- Queer and Christian by Brandan Robertson
- Rabbi Jesus by Bruce Chilton
- Rabble-Rouser for Peace by John Allen
- Radical Acceptance by Tara Brach
- Radical Healing by Rudolph Ballentine
- Radical Joy for Hard Times by Trebbe Johnson
- Radical Love by Omid Safi
- Radical Loving by Wayne Dosick
- Radical Spirit by Joan Chittister
- Rain by Cynthia Barnett
- Re-creating a Life by Diane M. Millis
- Re-enchantment by Jeffery Paine
- Read and Riot by Nadya Tolokonnikova
- Read the Bible like a Mystic by Carl McColman
- Real Change by Sharon Salzberg
- Real Happiness: The Power of Meditation by Sharon Salzberg
- Real Love by Sharon Salzberg
- Recipes for a Sacred Life by Rivvy Neshama
- Reclaiming Conversation by Sherry Turkle
- Reclaiming Spirituality by Diarmuid O'Murchu
- Reclaiming the Wild Soul by Mary Reynolds Thompson
- Reclaiming Your Body by Suzanne Scurlock-Durana
- Recovery - The Sacred Art by Rami Shapiro
- Red Fire by Paula D'Arcy
- Rediscovering Life by Anthony de Mello
- Reduced to Joy by Mark Nepo
- Reflections of Amma by Amanda J. Lucia
- Reinventing Christianity by John Parratt
- Religion Gone Astray by Don Mackenzie, Jamal Rahman, Ted Falcon
- Religion Is Not Done with You by Megan Goodwin, Ilyse Morgenstein Fuerst
- Remember by Joy Harjo
- Remembering Well by Sarah York
- Replanting Ourselves in Beauty by Jay McDaniel, Patricia Adams Farmer
- Rescuing the Light by Martin Prechtel
- Rest Is Resistance: A Manifesto by Tricia Hersey
- Restoring Life's Missing Pieces by Caren Goldman
- Return to Stillness by Trevor Carolan
- Return to the Root by Joyce Rupp
- Rise of the Robots by Martin Ford
- Ritual by Dimitris Xygalatas
- River of Offerings by Jennifer Prugh
- River Rescue by Jennifer Keats Curtis, Tri-State Bird Rescue & Research, Inc.
- Roar Like a Goddess by Acharya Shunya
- Rosie and Rasmus by Serena Geddes
- Rumi's Secret by Brad Gooch
- Running the Spiritual Path by Roger D. Joslin
- Sabbath by Wayne Muller
- Sacred America by Roger Housden
- Sacred Balance by Melinda Emily Thomas
- Sacred Darkness by Paul Coutinho
- Sacred Earth, Sacred Soul by John Philip Newell
- Sacred Ecstatics by Bradford Keeney, Hillary Keeney
- Sacred Fire by Ronald Rolheiser
- Sacred Laughter of the Sufis by Jamal Rahman
- Sacred Nature by Karen Armstrong
- Sacred Seed by Global Peace Initiative of Women
- Sacred Sendoffs by Sarah A. Bowen
- Sacred Therapy by Estelle Frankel
- Sacred Time and the Search for Meaning by Gary Eberle
- Saints As They Really Are by Michael Plekon
- Saracen Chivalry by Pir Zia Inayat-Khan
- Saving Civility by Sara Hacala
- Say One Kind Thing by Susan Verde
- Second Wind by Bill Thomas
- Secrets of Divine Love by A. Helwa
- Secrets of the Talking Jaguar by Martin Prechtel
- See No Stranger by Valarie Kaur
- Seeds for a Boundless Life by Zenkei Blanche Hartman
- Seeing into the Life of Things by Rodger Kamenetz
- Seeking Enlightenment . . . Hat by Hat by Nevada Barr
- Seiki Jutsu by Bradford Keeney, Hillary Keeney
- Selfies by Craig Detweiler
- Senior Moments by Willard Spiegelman
- Seven Sacred Pauses by Macrina Wiederkehr
- Seven Thousand Ways to Listen by Mark Nepo
- Seven Years in Tibet by Jean-Jacques Annaud, et al.
- Shamanic Christianity by Bradford Keeney
- Shh! by Chris Haughton
- Shift into Freedom by Loch Kelly
- Shopping for Faith by Don Lattin, Richard Cimino
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