This is the outdated edition. The book doesn't match the picture.The seller should be reported for that
Review #2
Not much you won't find everywhere else
This is a not too bad but not too good discussion of all the usual DSP topics. The author chooses to do some very strange things, for example there is no explicit use of normalized frequency, but when discussing filter design it is used without much mention which could be very confusing. Good points for the book are some interesting MATLAB routines, and fairly comprehensive coverage at a junior/senior level. I'd suggest McClellan's DSP First, Steiglitz's Digital Signal Processing Primer, and Intro. to Signal Processing by Orfanidis over this for someone who really wants to understand things. If you already do understand the material and are looking for a supplemental reference, Mitra or O&S seem like better choices to me.