Who can help recommend a book about Yin Yang and Five Elements Feng Shui that is easy to understand?

The most basic Feng Shui knowledge is available online. The best Feng Shui knowledge and complete reference book is "Feng Shui and Architecture" compiled by Kang Liang and Kang Yu. It comprehensively records the knowledge of the stems, branches, five elements and Feng Shui. Of course, it also requires rich knowledge of Feng Shui such as "Book of Changes" and "Ten Books of Yangzhai" to reach a certain level.