The primary books studied with Pema Khandro in her courses are:

• Dudjom Rinpoche’s Nyingma School of Tibetan Buddhism, Its Fundamentals, and History
• Shantideva’s Guide to the Bodhisattvas Way of Life
• Patrul Rinpoche’s Words of My Perfect Teacher
• Longchenpa’s Seven Treasuries
• Buddhahood Without Meditation by Dudjom Lingpa

More Books
For more recommended books see this list:

Where to Begin

John Powers

A Concise Introduction to Tibetan Buddhism

Namkhai Norbu Rinpoche
Dzogchen: The Self-Perfected State

Thinley Norbu Rinpoche
Magic Dance
The Small Golden Key 

More Texts

Alexander Berzin

Wise Teacher Wise Student, Tibetan Approaches to a Healthy Relationship

Longchenpa
You Are The Eyes of The World
Kindly Bent to Ease Us 1,2,3 Transl. Herbert Guenther
Precious Treasury, Transl. Richard Barron

Dudjom Lingpa
Buddhahood Without Meditation

Patrul Rinpoche
The Words of My Perfect Teacher

Namkhai Norbu Rinpoche
Dzogchen: The Self Perfected State
Rainbow Body
Cycle of Day & Night
Dzogchen Teachings
Dzogchen & Zen
The Mirror: Advice on Presence & Awareness
Tibetan Yoga of Movement
Dream Yoga
Natural Perfection
Longchenpa’s Advice From The Heart
Healing With Fire
Yantra Yoga
Crystal & The Way of Light
The Supreme Source
The Foundation of the Path
Birth, Life & Death
Beyond Words
Key For Consulting The Tibetan Calendar

Thinley Norbu Rinpoche
Magic Dance
The Small Golden Key 
A Cascading Waterfall of Nectar
Welcoming Flowers
White Sail

Chogyam Trungpa Rinpoche
The Myth of Freedom
Cutting Through Spiritual Materialism
The Sacred Path of The Warrior
Smile At Fear
The Lion’s Roar
Crazy Wisdom
The Tibetan Book of the Dead (translation and commentary by Francesca Fremantle & Chogyam Trungpa Rinpoche)

His Holiness, the 14th Dalai Lama
How To See Yourself As You Really Are
Mind In Comfort and Ease: The Vision of Enlightenment In The Great Perfection (with Patrick Gaffney, Matthieu Ricard and Richard Baron [Chökyi Nyima] May 18, 2007)

Dudjom Rinpoche
The Nyingma School of Tibetan Buddhism: Its Fundamentals & History

Ngakpa Chogyam and Khandro Dechen
Entering the Heart of the Sun & Moon
E-Mailing the Lamas from Afar
Roaring Silence: Discovering the Mind of Dzogchen
Spectrum Of Ecstasy
Wearing The Body Of Visions

Ngakpa Chogyam
Wisdom Eccentrics
Rays of the Sun

Tenzin Wangyal Rinpoche
The Tibetan Yogas of Dream & Sleep
Awakening The Luminous Mind
Awakening The Sacred Body
Tibetan Yogas of Body, Speech, and Mind
Tibetan Sound Healing
Healing With Form, Energy & Light: The Five Elements in Tibetan Shamanism, Tantra & Dozgchen
Tibetan Sound Healing

Tarthang Tulku Rinpoche
Crystal Mirror Series
Footsteps on the Diamond Path: Vol 1-3
Bringing The Teachings Alive: Vol 4
Lineage of Diamond Light: Vol 5
Buddha, Dharma & Sangha – Roots of Transmission: Vol 6
The Spread of the Dharma: Vol 7
Light of Liberation: Vol 8
Holy Places of the Buddha: Vol 9
Buddha and His Teachings: Vol 10
Masters of the Nyingma Lineage: Vol 11
Stupa – Sacred Symbol of Enlightenment: Vol 12

Padmasambhava
Advice From The Lotus Born
Dakini Teachings

Yeshe Tsogyal
The Lotus Born: The Life Story of Padmasambhava

Keith Dowman
Sky Dancer: The Secret Life & Songs of the Lady Yeshe Tsogyal
Masters of Mahamudra
Radical Dzogchen

Keith Dowman & Robert Beer
Buddhist Masters of Enchantment

Ngala Rig’dzin Dorje
Dangerous Friend

Pema Chodron
When Things Fall Apart
The Places That Scare You

Reggie Ray
Secrets of The Vajra World

Swami Rudrananda
Spiritual Cannibalism