The VHDL Handbook is a beautiful vintage textbook published back in 1989 by Kluwer Academic Publishers. This hard cover book is 389 pages and features in depth logic, detailed information and data as well as schematics, fascinating charts and graphs. Interesting glimpse into early days of computer science and technology. There is a pink laboratory identification stamped on the inside front cover blank page and on the side of book. Book cover has a little minimal wear due to age and use (see pics). Good luck!