I have heard about its significance to science and my university's library has a few copies but I also notice it's a rather old book so I'm wondering whether or not it is still relevant. If I wanted to learn about quantum mechanics is that a good place to start? The reason I ask is because I am very curious about it but I don't have room in my schedule either this or next semester to fit the intro to quantum physics class in. Also, regarding the maths involved, will the things I've learned in calculus III, elementary linear algebra, and differential equations be enough? Those, along with University Physics 1 and 2, are listed as the prerequisites for the intro to QM course on my school's website.