Over the past hundred years, electronic technology—especially digital—has transformed our world. If you're in the electrical trade or studying to be, there's a lot to learn and even more to keep up with. You need a directory of the basics, with chapter summaries, common symbols and abbreviations, a glossary, and more—one that's both study guide and ready reference. Here it is.

• Understand Ohm's Law, magnetism, insulators, and conductors
• Review circuit diagrams and principles of parallel circuits
• Examine electromagnetic induction, capacitance, and resistance
• Explore fiber optics, LED, laser, and radio wave technologies
• Delve into digital electronics, including logic circuits and binary code
• Learn information vital to maintaining and repairing audio systems and televisions
• Enhance your knowledge of computer electronics