Lyons' book is liked by many people I work with who are learning DSP on the job. The current version has 180 pages of tricks, 51 sections; additionally it cover

Lyons' book is liked by many people I work with who are learning DSP on the job. The current version has 180 pages of tricks, 51 sections; additionally it covers quadrature signals and Hilbert transforms. But, it is not free.