All along the book numerous examples of FPGA implementation are described

The circuits are modeled in VHDL

Complete and synthesizable source files are available at the author's web site www.arithmetic-circuits.org

It is not a book on Hardware Description Languages, and the reader is assumed to have a basic knowledge of VHDL

It is not a book on Logic Circuits either, and the reader is assumed to be familiarized with the basic concepts of combinational and sequential circuits