Because of its significance, the digital signal processing has found itself in the curriculums of the majority of technical colleges and universities throughout the world. Our experience has been transformed in several books and handbooks, each of which has given a significant contribution to the education of staff in the area of digital signal processing. The book “Discreet networks and signal processing” by prof. Vidosav Stojanovic sheds a somewhat different light on this important area. The title itself, as well as the titles of certain chapters, suggests a rich authentic experience of the book's author in lecturing at the faculty of Electronics in Nis on the subjects such as Theory of electric circuits and Digital signal processing.

The book is designed with precision and written consistently. It is an easy read and can serve to the students of techical colleges as well as engineers who in their practical work deal with the algorythms of digital signal processing. The nine chapters are rounded-up units, written in recognisable stule, with plenty examples, solid mathematical basis, useful illustrations and test quizz questions, some of wich enter deeply in the practical realm of digital signal processing with the MATLAB examples.

The first chapters are dedicated to discreet networks, discreet signals and their transformations. These chapters are most detailed, rich with examples and mathematical basis, where the central spots are held by fast Furie trasformation, analysis of the convertible system function as well as the transformations of analogue systems into discreet ones, respectively.

The book clearly demonstrates advantages and disadvantages of digital networks (systems) in relation to analogue ones, and great attention was given to the issues of algorythm speed and precision of calculations, as well as the very processes of projecting recursive and non-recursive digital filters. The author had no pretensions to cover all methods of projecting digital filters (e.g. he did not deal with optimizing methods of projecting filters with finite impulse response), but he dealt with chosen projecting methods in detail, with illustrations, and supported them with appropriate mathematical aparatus. Special attention was given to projecting certain classes of filters asselective systems based on transformations of analogue filter prototypes, whose projecting the author did not dwell on. The author even dedicated an entire chapter to direct synthesis of recursive digital filters, where the need for using analogue filter prototypes is completely eliminated, which represents a more original and less frequent approach to projecting digital filters with infinite impulse response.

The last two chapters are dedicated to structures for realization and problems related to final precision of binary records of numarical values and calculation in digital signal processing, without entering hardware and software architecture of specific digital signal processors.

This book represents a valuable contribution to our professional literature and will be precious in educating personell in the field of digital signal processing, which finds its application in many fields and applications of modern technologies.