This is a very short book on optics. It has only some 170 pages!
Still, it's a great fun! Pauli starts witn the Fermat principle and soon finds out the Hamilon-Jacobi equation connected to this variational principle: it's the eikonal equation. He proceeds to get a lot of general results in geometrical optics. After that come interference and diffraction; optics from Maxwell theory,crystal and molecular optics. You'll find fresh perspectives, surprising connections, everywhere. This is the ideal book to review your optical expertise: you'll have lots of fun seeing things you are familiar with, much better done!