Digital Logic Theory for Engineers - A Classic Workbook is a text written to comprehensively and effectively cover the content of important aspects of Level 1 Digital Logic Theory for most Electrical and Computer Engineering Undergraduate Degrees. This text presents material in seven (7) crucial aspects dealing with Digital Logic Theory: (1) Number Systems - Conversion Between Number Systems, (2) Number Systems - Signed Numbers, (3) Number Systems - Arithmetic, (4) Boolean Algebra, (5) Minimization using Karnaugh Maps, (6) Combinational Logic Circuits, (7) Integrated Circuit Technology. In this text, topics are presented with the aid of step-by-step solution of problems and diagrams where necessary. This strategy allows the reader to understand the theory presented. At the end of each chapter there is a number of practice questions provided for the reader to attempt. The answers for these questions are included at the end of the book.