What are the earliest Taoist classics?

..... The earliest has been lost, and the most famous ones are Tao Te Ching, Parting Ching and Tao Te Ching. The Jing Qing Classic should be before the Tao Te Ching. There is a saying: I don't know its name, so I strongly call it Tao. So I think the Qing Dynasty was before this. If you want to learn Taoism, calm down first, and then learn too much. You can start if you feel it. Hope to adopt