This book is essentially a guided tour of the fundamental concepts in digital signalprocessing (DSP) and analysis, in which the guide is not a theoretician of thevarious algorithms involved, but a user of them; a scientist that early in her lifestarted studying these techniques to apply them in a proper and fruitful way in herresearch work. Therefore the approach to the various topics is the approach of auser, more concerned about the way to best exploit the possibilities they offer,rather than their purely mathematical facets.