This open source book on WikiBooks will serve as an introduction to Digital Circuits. This book relies heavily on the concepts of Discrete Math, but will not require any previous knowledge of the subject because all necessary math concepts will be developed in the text. This book does assume a knowledge of basic electrical principles such as current, voltage, and resistance, so the reader may want to brush up on their Circuit Theory. The strength of digital technology in any context is fast, easy duplication with no loss of fidelity. In many media, this serves mainly to streamline distribution. While that aspect cannot be completely overlooked, some artistic endeavors, such as animation, are centered on a process of repeated duplication with systematic changes, so that digital tools often become a central part of the creative process.