Although this book was printed nearly thirty years ago, the content still provides value; in fact it is roughly the first two chapters of the book that I last used for a college course in digital logic for computer scientists. Boolean algebra is the fundamental mathematics used to represent the action of basic computer circuits such as the adder/subtractor and the flip-flop. The representation of numbers in binary and arithmetic as performed in binary are also covered. There are many diagrams of switches and logic gates to emphasize how the devices are implemented. This book remains a solid introduction to Boolean algebra as it is applied to basic computer circuitry, it can be used for initial study or as a refresher.