Electricity offers a complete introduction to the nature of electricity for those who want to know more about electricity but do not find the time to struggle through complicated handbooks. It explains what electricity and magnetism are, how batteries work, the difference between DC- and AC-fields, what conductors, inductance and capacitance are, and many other things. The text provides examples of practical electrical applications and includes checkpoints, self-tests, and a final examination with questions based on actual operator certification exams. Each chapter is illustrated by comprehensive figures, and particularly important key points are stressed where necessary.