The Kalachakra Tantra - Rite of Initiation For the Stage of Generation – by the XIV Dalai Lama and Jeffrey Hopkins

A commentary on the text of Kay-drup-ge-lek-bel-sang-bo , and the text itself.

Death, Intermediate State, and Rebirth in Tibetan Buddhism — by Jeffrey Hopkins

An excellent companion volume to the Tibetan Books of the Dead , and also contemporary Western works on death and dying.

Buddhist Philosophy in Theory and Practice — by Herbert V. Guenther

Growth of Buddhist philosophy as an encompassing vision that seeks to discover the Knowable and to reveal the nature of Being.

The Tibetan Book of the Great Liberation - Or the Method of Realizing Nirvana Through Knowing the Mind — by Padmasambhava

The repository of teachings of paramount importance, transmitted to the peoples of Occident from most illustrious Teachers of Tibet and of India.

Tibetan Yoga and Secret Doctrines - Seven Books of Wisdom of the Great Path - According to the Late Lama Kazi Dawa-Samdup's English Rendering — by W.Y. Evans-Wentz

This volume contains seven distinct yet intimately related treatises translated from the Tibetan.

Ancient Wisdom · Nyingma Teachings on Dream Yoga, Meditation, and Transformation — by Gyatrul Rinpoche

Three Dzogchen root texts with commentaries. An indispensable handbook for practitioners at all levels of experience.

Generating the Deity — by Gyatrul Rinpoche

This work offers a detailed presentation of the generation stage practice of tantric deity yoga. These are step-by-step teachings on the genereation stage practices of deity yoga as they were practiced in Tibet.

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.

Sublime Path to Kechara Paradise - Vajrayogini's Eleven Yogas of Generation Stage Practice as Revealed by the Glorious Naropa — Commentary by Sermey Khensur Lobsang Tharchin

Teachings of Tibetan Yoga — translated by Garma C.C. Chang

This is one of those rare books that goes into how to practice the inner yogas, including tummo and the other yogas of Naropa.