Secret Talks With Mr. G. is a 1978 book compiling recollections of lectures given by Mr. G. to a select group of students. The lectures explore objective magic, a system distinct from common forms of magic or psychic phenomena.

Mr. G.'s methods involved psychometry, altered states of consciousness induced by substances and techniques, and the mastering of one's "animal" nature. The text also covers concepts like the laws governing the universe, the development of higher bodies (astral, mental, divine), and the importance of obligation and conscience in spiritual development.

Finally, it details Mr. G.'s plans for establishing exclusive clubs to further his teachings.