The Bhagavad Gita According to Gandhi
The Rig Veda [Unabridged, English Translation] (The Vedas Book 2)
The Yoga Sutras of Patanjali
The Upanishads
Four Vedas In English
The Yajur Veda
Raja Yoga (Annotated Edition)
Bhakti Yoga (Annotated Edition)
The Upanishads (Easwaran's Classics of Indian Spirituality)