Chögyam Trungpa was a highly influential Tibetan Buddhist teacher who played a significant role in bringing Tibetan Buddhism to the Western world. He was known for his unconventional teaching methods and his ability to bridge the gap between Eastern and Western cultures. For those interested in learning more about Chögyam Trungpa and his teachings, there are several recommended books and resources available.

1. "Cutting Through Spiritual Materialism" by Chögyam Trungpa - This book is considered to be one of Trungpa's most influential works. In this book, he explores the pitfalls of spiritual materialism and offers insights on how to cultivate genuine spiritual growth.

2. "The Myth of Freedom and the Way of Meditation" by Chögyam Trungpa - In this book, Trungpa discusses the concept of ego and how it hinders our spiritual progress. He also offers practical advice on how to overcome the obstacles of ego through meditation.

3. "Shambhala: The Sacred Path of the Warrior" by Chögyam Trungpa - This book presents Trungpa's vision of Shambhala, a mythical kingdom of enlightened society. He discusses the principles of enlightened living and how they can be applied in our daily lives.

4. "The Collected Works of Chögyam Trungpa" - This is a comprehensive collection of Trungpa's writings, teachings, and interviews. It offers a deep dive into his teachings and provides a wealth of information for those interested in learning more about his philosophy.

5. "The Chronicles of Chögyam Trungpa" - This is a collection of stories, anecdotes, and teachings from Trungpa's life, as told by his students and colleagues. It offers a more personal and intimate look into Trungpa's life and teachings.

In addition to these books, there are also several online resources available for learning about Chögyam Trungpa. The Shambhala website (shambhala.org) offers a variety of articles, videos, and audio recordings of Trungpa's teachings. The Chronicles Project (chronicleproject.com) also provides a vast collection of Trungpa's teachings and writings, as well as personal accounts from his students.

In conclusion, for those interested in learning about Chögyam Trungpa and his teachings, there are many valuable resources available. Whether through his books or online resources, one can gain a deeper understanding of Trungpa's unique approach to Buddhism and his impact on the Western world.