A Lamp to Illuminate the Five Stages · Teachings on Guhyasamaja Tantra — by Tsongkhapa - translated by Gavin Kilty (Library of Tibetan Classics - Volume 15)
Covers the subtle human physiology of channels and winds along with the process of dying, bardo and rebirth.
Highest Yoga Tantra - An Introduction to the Esoteric Buddhism of Tibet — by Daniel Cozort
This extraordinary book clearly outlines and discusses the methods for transforming both body and mind through the highest forms of tantric practice.
Brilliant Illumination of the Lamp of the Five Stages - Practical Instructions in the King of Tantras - The Glorious Esoteric Community — by Tsongkhapa
The present work is the cornerstone of a Treasury of the Buddhist Sciences series. It is Tsongkhapa's most important commentary on the perfection stage practices of the Guhyasamaja - the Tantra he considered fundamental.
Path and Grounds of Guhyasamaja According to Arya Nagarjuna — by Yangchen Gawai Lodoe
This work by an eminent 18th century scholar is a brief but lucid and highly acclaimed treatise. It maps out the two stages of Guhyasamaja - 'king' of Highest Yoga Tantras. The work is presented here with a commentary by Geshe Lobsang Tsephel.