How to learn Nietzsche's thoughts? (entry level)

Coffee and Philosophy and Dream Catcher of Elegant Books Department are very popular introductory books on philosophy, and Introduction to Philosophy by Professor Wang Defeng of Fudan University is also very good. Other famous works such as Sophie's World, Camus's The Myth of Silver, and Russell's History of Western Philosophy are all classic philosophical books. In addition, Li Zehou's Outline of Philosophy, His Three Treatises on Literature and Culture, and Zhou's Nietzsche-At the Turn of the Century are all popular works of doctoral tutors majoring in philosophy. By the way, Stumpp's History of Western Philosophy-From Socrates to Sartre and Beyond is also a very new and good history of philosophy. If you are interested in China's classical philosophy, I recommend Feng Youlan's A Brief History of Chinese Philosophy.