Guru Gita: Lord Shiva’s Teachings (Vedas, Upanishads, Gita and Yoga - timeless wisdom series)
Katha Upanishad: The Path within - Ancient Wisdom for Modern Thought
The Dreamer Who Woke Up: A Story About Finding Who You Really Are
Non-duality for Beginners
The Wisdom of Adi Shankaracharya: Nonduality, Liberation, and the Eternal Self
Mahavakya: The Essence of Vedanta
The Taittiriya Upanishad 101: a modern, practical guide, plain and simple (The Ancient Hindu Enlightenment Series Book 3)
The Upanishads