A list of books/audio/video/material that have inspired me, transformed me, revolutionized my thinking and living:
1. On the road to freedom, vol 1 and 2 by Swami Paramatmananda Puri
2. Talks with Sri Ramana Maharishi by Munagala Venkataramiah
3. The Gospel of Sri Ramakrishna (Ramakrishna Kathamritha translated to English by Swami Nikhilananda)
4. Mata Amritanandamayi - A Biography by Swami Amritaswarupananda
5. Who Am I? (Nan Yar?) by Shri Ramana Maharshi
6. Autobiography of a Yogi by Paramahansa Yogananda
7. Atma Nirvritti and Atma Darshan by Atmananda Krishna Menon
8. Notes on Spiritual Discourses of Shri Atmananda by Nitya Tripta
9. Peace Pilgrim: Her Life and Work in Her Own Words by Peace Pilgrim
10. The Complete Works of Swami Vivekananda
11. Prayer of the Frog 1 and 2 by Anthony De Mello
12. Song of the Bird by Anthony De Mello
13. One Minute Wisdom by Anthony De Mello
14. One Minute Nonsense by Anthony De Mello
15. I am That by Nisargadatta Maharaj
16. Māṇḍūkya Upaniṣad by Swami Gambhirananda
17. Awaken Children (series) - dialogues with Mata Amritanandamayi
18. Ashtavakra Samhita by Swami Nityaswarupananda (Translator)
19. Srimad Bhagavad Gita (translation by Krishna Warrier, RK Math)
20. Bhagvad Gita As It Is by A. C. Bhaktivedanta Swami Prabhupad
21. Ramayana: Indian immortal tale of adventure, love and wisdom, re-told by Krishna Dharma
22. Valmiki Ramayana - Vol 1 & 2 by Bibek Debroy
23. Mahabharatha: The Greatest Spiritual Epic of All Time, re-told by Krishna Dharma, also the one by Rajagopalachari)
24. Mahabharatha by C. Rajagopalachari
25. Silence of the Heart: Dialogues with Robert Adams
26. The Power of Now by Eckhart Tolle
27. Stillness Speaks by Echkart Tolle
28. A New Earth by Echkart Tolle
29. Transparency of Things by Rupert Spira
30. Presence -I and II by Rupert Spira
31. Truth, Beauty, Love by Francis Lucille
32. Many Lives, Many Masters by Brian Weiss
33. Old Path White Clouds by Thich Nhat Hanh
34. The Dhammapada by Ananda Maitreya and Thich Nhat Hanh
35. What is Life? by Erwin Schrodinger
36. Maha Yoga by K Lakshmana Sarma
37. Ease of Being by Jean Klein
38. Compassion by Osho
39. Patanjali Yoga Sutras - translation by Edwin Bryant
40. The Power of Presence (Part 2) by David Godman
41. Annamalai Swami – Final Talks by David Godman
42. Living by the words of Bhagavan by David Godman
43. Siddhartha by Herman Hesse
44. Dying to be me by Anita Moorjani
45. Proof of Heaven: a neurosurgeon’s journey into the afterlife by Eben Alexander
46. Be As You Are: The Teachings of Sri Ramana Maharishi by David Godman
47. Man's Search for Meaning by Viktor Frankl
48. Sri Sri Ramakrishna Leelaprasanga by Swami Saradananda
49. Vivekachudamani (of Sankara Bhagavatpada) by Swami Chinmayananda
50. Vivekachudamani (of Sankara Bhagavatpada) – English translation of Sanskrit commentary of Sri Candrasekhara Bharati of Sringeri
51. Yoga, Enlightenment and Perfection of His Holiness Jagadguru Sri Abhinaya Vidyatheertha Mahaswamigal
52. The Multifaceted Jivanmukta - His Holiness Jagadguru Sri Abhinaya Vidyatheertha Mahaswamigal
53. The Collected Works of Ramana Maharshi by Ramana Maharshi and Arthur Osborne
54. God-realization Through Reason - Swami Iswarananda
55. In Woods of God Realization by Swami Rama Tirtha (vol 1-4)
56. Wake Up and Roar: Satsang with Papaji
57. Day By Day with Bhagavan by A. Devaraja Mudaliar
58. Bhagavan Sri Ramana Maharshi’s Words of Grace (Who Am I?, Self-Enquiry Spiritual Instruction)
59. Guru Vachaka Kovai - The sayings of Sri Ramana by Sri Muruganar; Micheal James and Sri Sadhu Om
60. Self-Realization: The life and teachings of Bhagavan Sri Ramana Maharshi by B V Narasimha Swami
61. Advaita Bodha Deepika by Karapatra Swami (Author), Venkataramaiah Munagala (Translator)
62. Kaivalya Navaneeta by Tandavaraya Swami (Author)
63. Conscious Immortality by Paul Brunton and Mungala Venkataramiah
64. Day by Day with Bhagavan - Devaraja Mudaliar
65. Maharshi’s Gospel - The Teachings of Sri Ramana Maharshi
66. Teachings of Sri Ramana Maharshi in His own Words Edited by Arthur Osborne
67. Guru Ramana by S.S. Cohen
68. They Lived with God: Life Stories of Some Devotees of Sri Ramakrishna by Swami Chetanananda
69. God Lived With Them: Life Stories Of Sixteen Monastic Disciples of Sri Ramakrishna by Swami Chetanananda
70. The Life of Swami Vivekananda - by his Eastern and Western Disciples
71. Apprenticed To A Himalayan Master: A Yog: A Yogi's Autobiography by Sri. M
72. The Journey Continues: A sequel to Apprenticed to a Himalayan Master by Sri M
73. If Truth Be Told: A Monk's Memoir by Om Swami
74. My Recollections of Bhagavan Sri Ramana by Devaraja Mudaliar
75. Gospel of the Holy Mother by Sarada Devi
76. The Ultimate Medicine: As Prescribed By Sri Nisargadatta Maharaj Dialogues
77. The Experience of Nothingness: Sri Nisargadatta Maharaj's Talks on Realizing the Infinite by Robert Powell
78. Pointers from Nisargadatta Maharaj by Ramesh S. Balsekar
79. Nothing is Everything: The Quintessential Teachings Of Sri Nisargadatta Maharaj by Mohan Gaitonde
80. Don’t Polish Your Ignorance …It May Shine by Sadhguru
81. Reality in Forty Verses (with Supplement) - Lakshmana Sarma’s commentary on Ulladu Narpadu
82. All is One (Ellam Ondre) - unknown 19th Century author in Tamil
83. The Essence of Ribhu Gita translated by Professor N. R. Krishnamoorthi Aiyer
84. The Supreme Yoga: Yoga Vasistha by Swami Venkatesananda
85. Mahendranath Gupta: The Recorder Of The Gospel Of Sri Ramakrishna by Swami Chetanananda
86. Back to the Truth by Dennis Waite
87. The Self Does Not Die: Verified Paranormal Phenomena from Near-Death Experiences by Titus Rivas , Anny Dirven, et al.
88. Video discourses on Srimad Bhagavad Gita by Swami Chinmayananda
89. Audio lectures on Mandukya Upanishad and Gaudapada Karika by Swami Paramarthananda (Arshya Vidya
90. Audio lectures on Kaivalya Upanishad by Swami Paramarthananda (Arshya Vidya Sampradaya)
91. Audio lectures on Keno Upanishad by Swami Paramarthananda (Arshya Vidya Sampradaya)
92. Satsangs with Swami Paramatmananda Puri (M.A. Math)
93. Video discourses, meditation, yoga and dialogues by Francis Lucille (on YouTube)
94. Video discourses, meditation, yoga and dialogues by Rupert Spira (on YouTube)
95. Video discourses by Swami Sarvapriyananda (on YouTube)
96. Video discourses by Eckart Tolle (on YouTube)
97. Video discourses by Swami Anubhavananda (on YouTube)
98. Video/audio interviews of Peace Pilgrim
99. Videos of Bernardo Kastrup, Donald Hoffman, Rupert Sheldrake (on YouTube)
100. Videos of Jim Tucker, Bruce Greyson, Ed Kelly (Division of Perceptual Studies or DOPS, Univ. of Virginia) (on YouTube)
101. Material related to re-incarnation – Ian Stevenson, Jim Tucker, Arun K Pati
102. Material related to Mediums, mediumship – Oliver Lazar (on YouTube)
103. Material related to paranormal phenomena – Dean Radin, Russell Targ, Rupert Sheldrake (on YouTube)
104. Material related to Near-Death Experiences (NDEs) and Shared Death Experiences (SDEs) – Dr. Pim van Lommel, Sam Parnia, Eben Alexander, Anita Moorjani, Raymond Moody, Bruce Greyson, Jeffrey Long, Penny Sartori, Peter Fenwick, Mary Neal, Scott Taylor (on YouTube)
105. Re-discovery of life: Awaken to Reality by Anthony de Mello (on YouTube)
106. Audio discourses (in Kannada) by Swami Brahmananda (Chinmaya Mission) on Mankuthimmana Kagga - poem by D. V. Gundappa; Video discourses (in Kannada) by Ha Ra Nagaraj Acharya (on YouTube)
107. Mantras/Stotras for chanting – Chinmaya Book of Hymns by Central Chinmaya Mission Trust; Ganapati Atharvasirsha; Sri Lalitha Sahasranama; Sri Vishnu Sahasranama; Sri Rudram; Hanuman Chalisa; Aditya Hridayam; Mahishasura Mardini Stotram; Dakshinamurthy Stotram; Manisha Panchakam; Guru Asthakam; 15th Chapter of the Srimad Bhagavad Gita (Purushottama Yoga); Lingastakam; Nirvana Shatakam; Sri Venkatesha Suprabhatham; Bhaja Govindam
108. The Thousand Names of the Divine Mother – Sri Lalitha Sahasranama with commentary by T V Narayana Menon (M.A. Mission Trust)
Others:
The Man Who Knew Infinity (a biography of Srinivasa Ramanujan) by Robert Kanigel
The Man Who Loved Numbers (a biography of Paul Erdos)
The World According to Wavelets: The Story of a Mathematical Technique in the Making, by Barbara Burke Hubbard
CHAOS by James Gleick
Emperor's new mind by Roger Penrose
Shadows of the mind by Roger Penrose
Godel, Escher Bach by Douglas Hofstadter
What is Life? by Schrodinger
Logicomix - A Novel by Apostolos Doxiadis and Christos Papadimitriou
In Search of Schrödinger's Cat: Quantum Physics and Reality by John Gribbin
The Elegant Universe: Superstrings, Hidden Dimensions, and the Quest for the Ultimate Theory
The Code Book by Simon Singh
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