Some of the authors I have read and recommend:
Joseph Campbell - The hero with a thousand faces
Antero Alli - Angel Tech
Jeremy Narby - The cosmic serpent
Eckhart Tolle - The Power of Now
Ken Wilber - No Boundary
Mircea Eliade - Shamanism "Archaic Techniques of ecstasy"
Robert Johnson - Inner Gold
Erich Fromm - Man for Himself
Peter Carey - Return of the Bird Tribes
Miyamoto Musashi - The Book of 5 Rings
Jung - Synchronicity
Stephen Wangh - An Acrobat of the heart
Partick Harpur - Daimonic Reality
Alain De Botton - The consolations of philosophy
Robert Greene - Mastery
Swami Satyananda Saraswati - Meditations from the tantras
Evelyn Underhill - Practical Mysticism
Penguin - The Essential Rumi
The upanishads
The Bhagavad Gita
Jennifer Biddle - Breasts, Bodies, Canvas
Antero Alli - Angel Tech
Jeremy Narby - The cosmic serpent
Eckhart Tolle - The Power of Now
Ken Wilber - No Boundary
Mircea Eliade - Shamanism "Archaic Techniques of ecstasy"
Robert Johnson - Inner Gold
Erich Fromm - Man for Himself
Peter Carey - Return of the Bird Tribes
Miyamoto Musashi - The Book of 5 Rings
Jung - Synchronicity
Stephen Wangh - An Acrobat of the heart
Partick Harpur - Daimonic Reality
Alain De Botton - The consolations of philosophy
Robert Greene - Mastery
Swami Satyananda Saraswati - Meditations from the tantras
Evelyn Underhill - Practical Mysticism
Penguin - The Essential Rumi
The upanishads
The Bhagavad Gita
Jennifer Biddle - Breasts, Bodies, Canvas