First, instead of drilling down into analytical details of one-dimensional Fourier analysis, these lectures scan the basic definitions and concepts focusing on the concrete, namely, computation. Then we move on to the basic principles of multidimensional spectra, a field fundamental to wavefield analysis and practical imaging.
The second theme of these lectures is examples. There are 60 illustrations here, the majority of them being computed illustrations of the concepts. The theory here is mostly that required to explain the examples.
All of the illustrations here come from my earlier books