Describe ScientistAndEngineersGuideToDigitalSignalProcessing here.
The Scientist and Engineer's Guide to Digital Signal Processing by Steven W. Smith (1997). ISBN 0-9660176-3-3 . Available online at http://www.dspguide.com. Claimed to be for "non-commercial use only", which I guess means is that you shouldn't be reading it at work.
DSP textbook, which (unlike most such books, such as DiscreteTimeSignalProcessing, which focus mainly on theory) contains a lot of material on practical implementation of DSP algorithms on commercial DigitalSignalProcessors.