Taoism is not a religion, it is beyond religion, beyond the concept of “God”. The word “Taoism” is derived from “Tao”, and not any word can explain what it is. If, it is not Tao.
The best way to learn to get the idea about it, the experience inside the self, the awareness, is to read the book where the word is from: the Tao Te Ching. A little book with short poems, in a free style form. It is written by Lao Tzu.