Volume III entirely devoted to the study of waves. There are water, sound, light, radio, seismic, de Broglie waves and others. Objective is to acquire familiarity with many examples of waves and achieve a realization of the applicability and generality of the concepts. Optics Kit for Waves includes diffraction grating, polarizers, quarter and half-wave plates and filters. (Description by http-mart)
Might be the best waves book out there. Although it is not the best book for EM waves and there might be other books offering a different and as detailed approach(like Smith's Waves and Oscillations), this is as good as it gets. I prefer it when studying about mechanical waves and I love the approach to general properties of waves(I love its approach to dispersion). But, before purchasing this, one should definitely check out Smith's aforementioned book, and also check out David Morin's drafted chapters of his Waves book. But keep in mind that few books offer such extensive and detailed discussions about the underlying physics and mathematics behind each phenomenon and even fewer have as extensive discussions on subtle matters as this.