Brief introduction of the author of the book of changes perpetual calendar

Li Guang has been engaged in the study of traditional culture for a long time. He is currently the director of the Hong Kong International Yi-ology Joint Center and an expert member of the China Association for the Promotion of Philosophy and Culture. He published and republished The Book of Changes and the Fate of Life, On Housewives, On Namers, A Practical Guide to the Book of Changes, A General Examination of Divination, The Book of Changes Secrets and The Book of Changes.