If you want to learn about Xuan Kong Flying Stars, you will find Xuan Kong Flying Stars Feng Shui written by Joey Yap of great value. I am always impressed with the quality and value I receive in purchasing books written by Joey Yap. His concise and easy to understand method of teaching is always a plus, but I am hooked by his no-nonsense approach. Graphics and illustrations are amazing quality that helps bring to life clear and concise teachings. Definitely, a book for your Feng Shui library a good resource for many years to come.