This is a list of books I recommend as good resources for Wicca, Pagan and Pagan-interest. They are not separated into any specific “beginner/advanced” type categories.
Wicca
The Triumph of the Moon: A History of Modern Pagan Witchcraft - Ronald Hutton
An ABC of Witchcraft Past and Present - Doreen Valiente
Witchcraft For Tomorrow - Doreen Valiente
Witchcraft Today - Gerald Gardner
Progressive Witchcraft: Spirituality, Mysteries, and Training in Modern Wicca - Janet Farrar and Gavin Bone
The Law Enforcement Guide To Wicca - Kerr Cuhulain
The Spiral Dance: A Rebirth of the Ancient Religion of the Goddess (20th Anniversary Edition) - Starhawk
The Real Witches' Handbook - Kate West
Witchcraft
The Night Battles: Witchcraft and Agrarian Cults in the Sixteenth and Seventeenth Centuries - Carlo Ginzburg
Ecstasies : Deciphering the Witches' Sabbath - Carlo Ginzburg
Pagan
The Wiccan Tao: A Reinterpretation of the Tao Te Ching - Boniface Wolfsong
The Second Circle: Tools for the Advancing Pagan - Venecia Rauls
Pagan Virtue: An Essay in Ethics - John Casey
The Pagan Religions of the Ancient British Isles: Their Nature and Legacy - Ronald Hutton
Stations of the Sun - Ronald Hutton
Pagans and the Law: Understand Your Rights - Dana D. Eilers
Drawing Down the Moon : Witches, Druids, Goddess-Worshippers, and Other Pagans in America Today - Margot Adler
Circles, Groves & Sanctuaries: Sacred Spaces of Today's Pagans - Dan and Pauline Campanelli
The Wisdom of the Pagan Philosophers - Timothy Freke/Peter Gandy
Warriors of the Wasteland: A Quest for the Pagan Sacrificial Cult Behind the Grail Legends - John Grigsby
A Book of Pagan Prayer - Ceisiwr Serith
Shamanism
Shamanism: Archaic Techniques of Ecstasy - Mircea Eliade
The Way Of Wyrd: Tales Of An Anglo-Saxon Sorcerer (fiction) - Brian Bates
Soul Retrieval: Mending the Fragmented Self Through Shamanic Practice - Sandra Ingerman
Drumming the Spirit to Life - Russell Buddy Helm (CD included)
Impro - Keith Johnstone (specifically for the chapter entitled "Mask and Trance")
Eduardo El Curandero: The Words of a Peruvian Healer - Richard, M.D. Cowan, Douglas Sharon, F. Kaye Sharon
Occult
The Forge and the Crucible : The Origins and Structure of Alchemy - Mircea Eliade
Rites and Symbols of Initiation: The Mysteries of Birth and Rebirth - Mircea Eliade
Myth and Symbolism
The Power of Myth - Joseph Campbell
The Hero With A Thousand Faces - Joseph Campbell
Transformations of Myth Through Time - Joseph Campbell
The Masks of God: Creative Mythology - Joseph Campbell
Images and Symbols - Mircea Eliade
Goddess/Divine Feminine
The Goddess Companion: Daily Meditations on the Feminine Spirit - Patricia Monaghan
The Goddess Path: Myths, Invocations & Rituals - Patricia Monaghan
The New Book of Goddesses & Heroines - Patricia Monaghan
Sophia: Goddess of Wisdom : The Divine Feminine from Black Goddess to World-Soul - Caitlin Matthews
The Song of Eve: Mythology and Symbols of the Goddess - Manuela Dunn Mascetti
The Myth of Matriarchal Prehistory - Why an Invented Past Will Not Give Women a Future - Cynthia Eller
Book of Hours: Prayers to the Goddess - Galen Gillotte
Magick & Divination
The Heretic's Tarot - Boniface Wolfsong
A Wicked Pack of Cards: The Origins of the Occult Tarot - Ronald Decker, Thierry Depaulis and Michael Dummett (out of print; check rare book dealers)
Magick in Theory and Practice - Aleister Crowley
Death and Dying
The Pagan Book of Living and Dying: Practical Rituals, Prayers, Blessings, and Meditations on Crossing Over - Starhawk, M. Macha NightMare
Sacred Dying : Creating Rituals For Embracing the End of Life - Megory Anderson
The Skeleton at the Feast: The Day of the Dead in Mexico - Elizabeth Carmichael, Chloe Sayer
Of Interest
Satanic Panic: The Creation of a Contemporary Legend - Jeffrey S. Victor
The Gnostic Gospels - Elaine Pagels
The Origin of Satan - Elaine Pagels
Many Moons: The Myth & Magic, Fact & Fantasy of Our Nearest Heavenly Body - Diana Brueton
The Triumph of the Moon: A History of Modern Pagan Witchcraft - Ronald Hutton
An ABC of Witchcraft Past and Present - Doreen Valiente
Witchcraft For Tomorrow - Doreen Valiente
Witchcraft Today - Gerald Gardner
Progressive Witchcraft: Spirituality, Mysteries, and Training in Modern Wicca - Janet Farrar and Gavin Bone
The Law Enforcement Guide To Wicca - Kerr Cuhulain
The Spiral Dance: A Rebirth of the Ancient Religion of the Goddess (20th Anniversary Edition) - Starhawk
The Real Witches' Handbook - Kate West
Witchcraft
The Night Battles: Witchcraft and Agrarian Cults in the Sixteenth and Seventeenth Centuries - Carlo Ginzburg
Ecstasies : Deciphering the Witches' Sabbath - Carlo Ginzburg
Pagan
The Wiccan Tao: A Reinterpretation of the Tao Te Ching - Boniface Wolfsong
The Second Circle: Tools for the Advancing Pagan - Venecia Rauls
Pagan Virtue: An Essay in Ethics - John Casey
The Pagan Religions of the Ancient British Isles: Their Nature and Legacy - Ronald Hutton
Stations of the Sun - Ronald Hutton
Pagans and the Law: Understand Your Rights - Dana D. Eilers
Drawing Down the Moon : Witches, Druids, Goddess-Worshippers, and Other Pagans in America Today - Margot Adler
Circles, Groves & Sanctuaries: Sacred Spaces of Today's Pagans - Dan and Pauline Campanelli
The Wisdom of the Pagan Philosophers - Timothy Freke/Peter Gandy
Warriors of the Wasteland: A Quest for the Pagan Sacrificial Cult Behind the Grail Legends - John Grigsby
A Book of Pagan Prayer - Ceisiwr Serith
Shamanism
Shamanism: Archaic Techniques of Ecstasy - Mircea Eliade
The Way Of Wyrd: Tales Of An Anglo-Saxon Sorcerer (fiction) - Brian Bates
Soul Retrieval: Mending the Fragmented Self Through Shamanic Practice - Sandra Ingerman
Drumming the Spirit to Life - Russell Buddy Helm (CD included)
Impro - Keith Johnstone (specifically for the chapter entitled "Mask and Trance")
Eduardo El Curandero: The Words of a Peruvian Healer - Richard, M.D. Cowan, Douglas Sharon, F. Kaye Sharon
Occult
The Forge and the Crucible : The Origins and Structure of Alchemy - Mircea Eliade
Rites and Symbols of Initiation: The Mysteries of Birth and Rebirth - Mircea Eliade
Myth and Symbolism
The Power of Myth - Joseph Campbell
The Hero With A Thousand Faces - Joseph Campbell
Transformations of Myth Through Time - Joseph Campbell
The Masks of God: Creative Mythology - Joseph Campbell
Images and Symbols - Mircea Eliade
Goddess/Divine Feminine
The Goddess Companion: Daily Meditations on the Feminine Spirit - Patricia Monaghan
The Goddess Path: Myths, Invocations & Rituals - Patricia Monaghan
The New Book of Goddesses & Heroines - Patricia Monaghan
Sophia: Goddess of Wisdom : The Divine Feminine from Black Goddess to World-Soul - Caitlin Matthews
The Song of Eve: Mythology and Symbols of the Goddess - Manuela Dunn Mascetti
The Myth of Matriarchal Prehistory - Why an Invented Past Will Not Give Women a Future - Cynthia Eller
Book of Hours: Prayers to the Goddess - Galen Gillotte
Magick & Divination
The Heretic's Tarot - Boniface Wolfsong
A Wicked Pack of Cards: The Origins of the Occult Tarot - Ronald Decker, Thierry Depaulis and Michael Dummett (out of print; check rare book dealers)
Magick in Theory and Practice - Aleister Crowley
Death and Dying
The Pagan Book of Living and Dying: Practical Rituals, Prayers, Blessings, and Meditations on Crossing Over - Starhawk, M. Macha NightMare
Sacred Dying : Creating Rituals For Embracing the End of Life - Megory Anderson
The Skeleton at the Feast: The Day of the Dead in Mexico - Elizabeth Carmichael, Chloe Sayer
Of Interest
Satanic Panic: The Creation of a Contemporary Legend - Jeffrey S. Victor
The Gnostic Gospels - Elaine Pagels
The Origin of Satan - Elaine Pagels
Many Moons: The Myth & Magic, Fact & Fantasy of Our Nearest Heavenly Body - Diana Brueton