"The Life and Teachings of Hermes Trismegistus" by Manly P. Hall is a book that explores the legendary figure of Hermes Trismegistus and the wisdom attributed to him. Hermes Trismegistus is a mythical and syncretic figure often associated with ancient Egypt and Greece, believed to be a master of various esoteric and philosophical disciplines, including alchemy, astrology, and spirituality.

In this book, Manly P. Hall delves into the life, philosophy, and teachings of Hermes Trismegistus. He discusses the Hermetic tradition and its influence on Western thought and spirituality. The book explores the concept of Hermeticism, which encompasses a wide range of mystical and philosophical ideas, such as the principles of correspondence ("as above, so below"), the unity of all things, and the pursuit of spiritual enlightenment.