If you are new to Feng Shui, buy a medium-sized compass. A seven- to eight-inch comprehensive compass is the best, and can be used for both three-yuan and three-in-one compasses. If you have a foundation in the Book of Changes, you can first learn Sanyuan and Xuankong. There are many mountains and rivers in the south, and there are many Feng Shui masters who use the Sanhe School. Good Feng Shui masters have learned several methods and used them flexibly, 30 to 40 All the commonly used contents of the layer compass are available. Search the official website on Baidu ~ Jiyitang. Room 801, 8/F, Golden Chaoyang Centre, 28 Russell Street, Causeway Bay, Hong Kong