Huangdi Neijing

The Yellow Emperor's Inner Canon (Huangdi Neijing) may be one of the most important books you should read in your lifetime. Not because the book is important, but because you are important. Your health, with all its stages from birth to old age, is the most significant thing in your life.
Traditional Chinese medicine (TCM) is a traditional medical science that studies the physiology, pathology, diagnosis, prevention, and treatment of diseases, as well as health preservation and rehabilitation. It has a distinctive theoretical system.
The Yellow Emperor's Inner Canon is the earliest surviving medical classic in China, considered the progenitor of medical texts, laying the foundation for the theoretical system of TCM, and possessing significant theoretical and practical guidance for the development of TCM in later generations.
Presenting the Yellow Emperor's Inner Canon to the Western world faces three major obstacles. From Classical Chinese to Modern Chinese, and then to English, there is a language barrier. Translators must be both TCM doctors, well-versed in medical theory and experienced in treating patients; this is a professional obstacle. Additionally, translators must have a profound understanding of the truth of life. Only those who can overcome these three obstacles can truly convey the true meaning of the Yellow Emperor's Inner Canon.
This translation by Mr. Yingxiong Feng might be the best English version of Huangdi Neijing that you can find on the internet.