Here are some of his notable works:
Books:
* The Secret Teachings of All Ages: A Comprehensive and Authoritative Encyclopedia of Mysticism, Esotericism and Spiritual Traditions (2003) - This is one of his most well-known books, offering an overview of various spiritual traditions throughout history.
* The Gnostic Bible: The Ancient Texts That Reveal the True Meaning of Christianity (2009) - This book presents a collection of Gnostic texts and explores their significance in understanding Christianity.
* The Secret Teachings of Hermes Trismegistus: The Kybalion, Emerald Tablet, and Other Hermetic Writings (2011) - This book explores the Hermetic tradition and its influence on Western thought.
* The Secret Teachings of the Kabbalah: The Zohar, Tree of Life, and Other Kabbalistic Texts (2012) - This book delves into the mystical tradition of Kabbalah and its esoteric teachings.
* The Secret Teachings of the Sufis: The Quran, Hadith, and Other Sufi Writings (2013) - This book examines the Sufi tradition and its mystical approach to Islam.
* The Secret Teachings of the Egyptians: The Pyramid Texts, Book of the Dead, and Other Egyptian Writings (2014) - This book explores the ancient Egyptian spiritual traditions and their esoteric teachings.
* The Secret Teachings of the Mayans: The Popol Vuh, Chilam Balam, and Other Mayan Writings (2015) - This book focuses on the Mayan spiritual traditions and their cosmology.
* The Secret Teachings of the Hindus: The Vedas, Upanishads, and Other Hindu Writings (2016) - This book investigates the Hindu spiritual traditions and their philosophical concepts.
* The Secret Teachings of the Buddhists: The Pali Canon, Tibetan Book of the Dead, and Other Buddhist Writings (2017) - This book explores the Buddhist traditions and their teachings on enlightenment.
Articles and Essays:
Hall has also contributed numerous articles and essays to various publications, including:
* The Esoteric Review
* The Gnostic Society Journal
* The Hermetic Journal
His works are often characterized by a scholarly approach and a deep understanding of the various spiritual traditions he covers. He aims to present these traditions in a clear and accessible manner, making them accessible to a wider audience.
It's important to note that Hall's interpretations and perspectives are often subjective and based on his own research and understanding. It is always recommended to consult multiple sources and perspectives when exploring these complex topics.