Introduction to Switching Theory and Logical Design

This is a very old book, but even though the software that holds your hand and does so much of today's digital design for you changes version on a regular basis, a Karnaugh map never does. I used this book in a graduate class over twenty years ago, and it still is the most complete on the theory of digital design that I know of, even though it's been out of print for years. Of course there's nothing about FPGA's or VHDL. But it has everything from the basics of number systems and truth functions to ordinary sequential circuit design and on to clock-mode versus pulse-mode design, incompletely specified sequential circuits, and level mode circuit design. The book has very good explanations and lots of examples. There are very few issues this book goes over that would not be applicable to digital design today, because it never really gets into specific devices or design languages, which of course have changed very much since this book was published. I know I'll have my copy around until the binding finally gives out. I highly recommend it as a good cheap course in digital design from beginner to advanced level.