There are two popular editions, one is the physics edition published by Sichuan University, and the other is published by Tongji University. Tongji's books are more abstract in mathematics, while Sichuan University's books pay more attention to the combination with physics, which is easier to understand and deeper from the physical point of view. Personally, I think the books of Sichuan University are better. I use books from Sichuan University for my postgraduate entrance examination, so it is better to choose books from Sichuan University.