Clarifying the Natural State: A Principal Guidance Manual for Mahamudra
https://www.amazon.com/Clarifying-Natural-State-Principal-Mahamudra/dp/9627341452/

Crystal Clear: Practical Advice for Mahamudra Meditators
https://www.amazon.com/Crystal-Clear-Practical-Mahamudra-Meditators/dp/9627341517/

Masters of Mahamudra: Songs and Histories of the Eighty-Four Buddhist Siddhas
https://www.amazon.com/Masters-Mahamudra-Histories-Eighty-Four-Buddhist/dp/0887061605/

Wild Awakening: The Heart of Mahamudra and Dzogchen
https://www.amazon.com/Wild-Awakening-Heart-Mahamudra-Dzogchen-ebook/dp/B00BIO54IU/

The Life of Tilopa and the Ganges Mahamudra
https://www.amazon.com/Life-Tilopa-Ganges-Mahamudra/dp/1877294225/

Tilopa’s Mahamudra Upadesha: The Gangama Instructions with Commentary
https://www.amazon.com/Tilopas-Mahamudra-Upadesha-Instructions-Commentary-ebook/dp/B00JJW5OG0/