- In Jesus' Name, I Proclaim I'm Blessed Not Black
- In Jesus’ Arms
- In Jesus’ Sleeping Quarters:
- In Just Three Years
- In Kierkegaard's Garden with the Poppy Blooms
- In kje je tu Bog?
- In Layman's Terms
- In Leadership: follow me as I follow Christ
- In Lieu of Flowers
- In Life is the Purpose of the World
- In lig en lewe
- In Light of Eternity
- In Light of Who You Are
- In lode di Tara
- In Love
- In Love for Life
- In Love There Is No Fear
- In Love with a Stranger
- In Love with the Church
- In Love, Where I Belong
- In Many Pulpits with Dr. C. I. Scofield
- In Marriage and Divorce
- In meinem Herzen Feuer
- In Memoriam
- In Memory's Kitchen
- In mezzo alle ragioni
- In Moments Like These Volume Four
- In Moments Like These Volume Three
- In Moments Like These Volume Two
- In My Darkest Hour I Found The Light
- In My Days and In My Sleep
- In My Defense
- In My Distress
- In My Dreams
- In My Egotistical Opinion
- In My Element
- In My Father's Arms
- In My Father's House
- In My Father's Workshop
- In my Father’s House
- In My Grandmother's House
- In My Grandmother's Words
- In My Heart Cried Out
- In My Heart Room
- In My Mind's Eye
- In My Own Way
- In My Own Words
- In My Secret Place
- In necessariis unitas
- In nome del figlio
- In nome dell’amore
- In Oceans Deep
- In One Combined
- In One Hour: The Imminent Future of America
- In One Push: Two Girls. One Desire. Different Results.
- In Other Words
- In Other Words . . .
- In Our Backyard
- In Our Father’S Arms
- In Our Image
- In Our Image: After Our Likeness
- In Our Lifetime
- In Our Maker's Image
- In Our Music, God
- In Our Own Image
- In Our Own Words
- In Our Weakness, God is Strong
- In Over Your Head
- In Paradise!
- In Perfect Peace
- In persona Christi
- In Plane Sight
- In poche parole, Francesco
- In Polygamy's Shadow: From a Mormon Childhood to a Life of Choice
- In Port - Meditations On the Psalms
- In Praise of Adya Kali
- In Praise of Ageing
- In Praise of Baal Shem Tov (Shivhei Ha-Besht
- In Praise of Folly
- In Praise of Folly: Illustrated with Many Curious Cuts
- In Praise of Great Compassion
- In Praise of Heteronomy
- In Praise of Hiddenness
- In Praise of Intransigence
- In Praise of Olympus
- In Praise of Religious Diversity
- In Praise of Sadhguru Sai
- In Praise Of Saint Paul
- In Praise of Swāmi Vedānta Deśika
- In Praise of the Goddess
- In Praise of Weakness (with a Foreword by Matthieu Ricard)
- In Praise of Śrī Rāmānujā
- In Praise To God
- In principio
- In Psychic Defense
- In punta di piedi
- In Pursuit
- In Pursuit of Angelic Power
- In Pursuit of Boaz
- In Pursuit of Destiny
- In Pursuit Of Fruit
- In Pursuit of God: A 100-Day Devotional
- In Pursuit Of Fruit
- In Pursuit of God: A 100-Day Devotional
- In Pursuit of God: Choose Life or Death
- IN PURSUIT OF GODLINESS
- In Pursuit of Godliness and a Living Judaism
- In Pursuit of Great AND Godly Leadership
- In Pursuit of Holiness
- In Pursuit of Justice
- In Pursuit of Kingdom Living
- In Pursuit of Legacy
- In Pursuit of Peace
- In Pursuit of Purpose
- In Pursuit of Purpose: A Guide to Getting Results When I Pray
- In Pursuit of Relevance
- In Pursuit of Religious Freedom
- In Pursuit of Stability
- In Pursuit of The "Truth"
- In Pursuit of the Living God
- In Pursuit of the Miraculous
- In Pursuit of the Virtuous Woman
- In Pursuit of Truth
- In Pursuit of Truth and Doctrinal Unity
- IN PURSUIT OF VISION
- In Pursuit of Wholeness
- In quest for the seed idea
- In Quest of Life
- In Quest of the Hero
- In Quest of the Historical Adam
- In questa città ho un popolo numeroso
- In questo crediamo. Una spiritualità per il nostro tempo
- In questo luogo c'era Dio e io non lo sapevo
- In Reality
- In relazione con Dio. L'insegnamento del Baal Shem Tov
- In Remembrance of Me
- In Remembrance of the Saints
- In Remembrance of You!
- In Response to the Religious Other
- In Retreat
- In Sacred Loneliness
- IN SEARCH FOR SINGULARITY
- In Search of a Father
- In Search of a Soul
- In Search of an American Catholicism
- In Search of Andi
- In Search of Antichrist by the Dead Man of Rome
- In Search of Authority
- In Search of Balance
- In Search of Beautiful
- In Search of Belief
- In Search of Blessing