The number of words in Rubik's cube notes of China University of Political Science and Law varies with different versions and contents, and is generally more than 300,000 words. It includes the basic knowledge of Rubik's cube, reduction method, speed formula, skills and so on. In different versions of Rubik's cube notes, the content and number of words will be different, and will be modified and updated according to user feedback and update iteration. Generally speaking, Rubik's Cube Notes is a very detailed and systematic Rubik's Cube learning reference book, suitable for beginners and advanced learners.