It is good to read not just any book on meditation, but authentic books, especially the lamrim.

You need to learn the Buddhadharma well by reading the correct books, such as books by His Holiness the Dalai Lama. It is good to read not just any book on meditation or what is called “spiritual,” but authentic books, especially the lamrim. If they are correct Buddhadharma texts, you won’t be confused.

Here are a few that I recommend. You can ask Liberation Prison Project for them.

Biography and autobiography

The Awakened One: A Life of the Buddha, by Sherab Chödzin Kohn
Big Love: The Life and Teachings of Lama Yeshe, by Adele Hulse
Freedom in Exile: The Autobiography of His Holiness the Dalai Lama
The Lawudo Lama, a biography of both Kunsang Yeshe and Lama Zopa Rinpoche, by Jamyang Wangmo
The Life of My Teacher: A Biography of Ling Rinpoche, by His Holiness the Dalai Lama
Like a Waking Dream: The Autobiography of Geshe Lhundub Sopa
The Magical Play of Illusion: The Autobiography of Trijang Rinpoche
My Life and Lives: The Story of a Tibetan Incarnation, by Khyongla Rato
My Spiritual Autobiography, by His Holiness the Dalai Lama
Reincarnation: The Boy Lama, a biography of Tenzin Ösel Hita, the reincarnation of Lama Yeshe, by Vicki Mackenzie

Any of the biographies of His Holiness the Dalai Lama

Bodhicitta

Becoming the Compassion Buddha, by Lama Yeshe
Bodhichitta, by Lama Zopa Rinpoche
Eight Verses for Training the Mind, by Geshe Sonam Rinchen
A Guide to the Bodhisattva Way of Life, by Shantideva, translated by Vesna A. Wallace and B. Alan Wallace
Vast as the Heavens, Deep as the Sea: Verses in Praise of Bodhicitta, by Khunu Rinpoche
The Six Perfections: The Practice of the Bodhisattvas, by Lama Zopa Rinpoche
The Thirty-seven Practices of Bodhisattvas, by Geshe Sonam Rinchen

Death and dying

How to Face Death Without Fear, by Lama Zopa Rinpoche
Mind of Clear Light: Advice on Dying and Living a Better Life, by His Holiness the Dalai Lama

Emptiness and dependent arising

Essence of the Heart Sutra, by His Holiness the Dalai Lama
Emptiness, by Geshe Tashi Tsering
Insight into Emptiness, by Khensur Jampa Tegchok
Introduction to Emptiness, by Guy Newland
Practicing Wisdom: The Perfection of Shantideva’s Bodhisattva Way, by His Holiness the Dalai Lama
Tsongkhapa’s Praise for Dependent Relativity, by Losang Gyatso and Graham Woodhouse

The four noble truths

The Four Noble Truths, by Lama Zopa Rinpoche

Guru devotion

The Heart of the Path, by Lama Zopa Rinpoche

Guru yoga

A Daily Meditation on Shakyamuni Buddha, by Lama Zopa Rinpoche
The Guru Puja, by Panchen Lama Losang Chökyi Gyältsen
Lama Tsongkhapa Guru Yoga, by Dulnagpa Paldan Zangpo, translated by Lama Zopa Rinpoche

Karma

The Meaning of Life: Buddhist Perspectives on Cause and Effect, by His Holiness the Dalai Lama
The Wheel of Sharp Weapons, by Dharmarakshita
Steps on the Path to Enlightenment, Volume 2, by Geshe Lhundub Sopa (see below)

Lamrim commentaries

The Door to Satisfaction, by Lama Zopa Rinpoche
The Essential Nectar: Meditations on the Buddhist Path, by Geshe Rabten
The Great Treatise on the Stages of the Path to Enlightenment: Lamrim Chenmo, (Vols. 1–3) by Lama Tsongkhapa
How to Practice Dharma, by Lama Zopa Rinpoche
Illuminating the Path to Enlightenment, by His Holiness the Dalai Lama
Lamrim Year, by Lama Yeshe and Lama Zopa Rinpoche
Liberation in the Palm of Your Hand, by Pabongka Rinpoche
Nagarjuna’s Letter to a Friend, with commentary by Kangyur Rinpoche
The Perfect Human Rebirth, by Lama Zopa Rinpoche
Practicing the Path: A Commentary on the Lamrim Chenmo, by Yangsi Rinpoche
Steps on the Path to Enlightenment: A Commentary on the Tsongkhapa’s Lamrim Chenmo (Vols. 1–5), by Geshe Lhundub Sopa
Teachings from the Mani Retreat, by Lama Zopa Rinpoche
Teachings from the Vajrasattva Retreat, by Lama Zopa Rinpoche
Wisdom Energy, by Lama Yeshe and Lama Zopa Rinpoche

Lamrim prayers

Calling the Guru from Afar, by Pabongka Rinpoche
A Direct Meditation on the Graduated Path Containing all the Important Meanings, by Vajradhara Losang Jinpa
The Foundation of All Good Qualities, by Lama Tsongkhapa
A Hymn of Experience, by Lama Tsongkhapa
The Three Principal Aspects of the Path, by Lama Tsongkhapa

The mind and meditation

Becoming Your Own Therapist & Make Your Mind an Ocean, by Lama Yeshe
Buddhist Psychology, by Geshe Tashi Tsering
How to Meditate: A Practical Guide, by Kathleen McDonald
Mahamudra: How to Discover Our True Nature, by Lama Yeshe

Purification

Becoming Vajrasattva, by Lama Yeshe
Purification in Tibetan Buddhism: The Practice of the Thirty-five Confession Buddhas, by Geshe Jampa Gyatso

Sutras

The Arya Sanghata Sutra
The Diamond Cutter Sutra
The Golden Light Sutra
The Heart Sutra

Tantra

Introduction to Tantra, by Lama Yeshe

Thought transformation

Advice from a Spiritual Friend, by Geshe Rabten and Geshe Dhargyey
Bodhisattva Attitude, by Lama Zopa Rinpoche (ebook only)
The Door to Satisfaction, by Lama Zopa Rinpoche
The Seven-Point Mind Training, by B. Alan Wallace
Transforming Adversity into Courage and Joy, by Geshe Jampa Tegchok
Transforming Problems into Happiness, by Lama Zopa Rinpoche