How to Know God: The Yoga Aphorisms of Patanjali

Bhagavad Gita: The Song of God

Shankara's Crest Jewel of Discrimination

The Upanishads: Breath of the Eternal

Gospel of Sri Ramakrishna

Srimad Bhagavatam: The Wisdom of God

The Gospel Of Ramakrishna

The Yoga Sutras of Patanjali

The Upanishads (Classic of Indian Spirituality)

Complete Works of Swami Vivekananda