Best for: Older, out-of-copyright English drafts. Search for "Nan Jing 1930." You may find the rare 1932 translation by Arthur W. Hummel (though Hummel did a partial translation, not the full 81 chapters).
For over two millennia, the Nan Jing (难经), formally known as the Huangdi Bashiyi Nan Jing (The Yellow Emperor’s Classic of Eighty-One Difficulties), has stood as a cornerstone of Traditional Chinese Medicine (TCM). Second only to the Huangdi Neijing (The Yellow Emperor’s Inner Canon), this clinical gem refines and expands upon the theories of diagnostics, physiology, and acupuncture. nan jing pdf