“This book contains both simple and more advanced projects, and it is hoped that these will be found of great help in developing a knowledge of the workings of digital circuits. Various forms of assembling and wiring the integrated circuits on their boards are shown, and this aspect of a project can be quite straightforward, and not need the preparation of a printed circuit board. The more ambitious projects can be built and tested step by step, and this will avoid or correct faults which could otherwise be troublesome, and will result in a better understanding of how the devices operate.”