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.
Daring Steps Toward Fearlessness · The Three Vehicles of Buddhism — by Ringu Tulku
This work draws on several venerable sources, ranging from Buddha's earliest teachings to a Vajayanna texts.
The Lankavatara Sutra
The holy grail of Zen, it covers all the major teachings of Mahayana Buddhism. This is the only Zen sutra ever spoken by the Buddha.
The Platform Sutra - The Zen Teaching of Hui-Neng — translated by Red Pine
Autobiography of the controversial 6th Patriarch of Zen, and his understanding of the fundamentals of a spiritual and practical life.
The Heart Sutra - The Womb of Buddhas — by Red Pine
A wise book of deep teaching destined to become the standard edition of this timeless statement of Mahayana.
Taranatha's History of Buddhism in India
Modern scholars have extensively using specially this translation for decades and for varied purposes.
The Treatise on the Great Virtue of Wisdom of Nagarjuna - Mahaprajnaparamitasastra - in five volumes — compiled by Etienne Lamotte
A Waterdrop from the Glorious Sea - A concise account of the advent of Buddhism in general and the teachings of the Sakyapa tradition in particular — compiled by Sherab Gyaltsen
Ornament of Stainless Light - An Exposition of the Kalacakra Tantra — by Khedrup Norsang Gyatso (Library of Tibetan Classic - volume 14)
The Kalacakra texts present an amazingly detailed theory of cosmology and astronomy, especially about the movements of the various celestial bodies.