2.5* The relativity sections in the front were very helpful but as it went on it was not quite as great. The intro to quantum was fine (but definitely not the best quantum textbook) but after getting through the only 3 solvable problems and moving into multiparticle physics it became less and less useful. Spin, in particular, was a topic that this book couldn't explain very well and I had to go elsewhere to understand the topic at even a basic level. I skimmed the thermo and nuclear sections since we're not covering them in class so I can't really speak to them as much as the earlier sections.
Einstein's theory of relativity. Quantum mechanics. Time dilation and length contraction. It's all very mind bending. Crazy how the world of the very small works. What an amazing universe we live in.