Electricians are the people who keep us plugged into the conveniences of modern life. Most of us have heard of circuits, fuses, volts, and watts. Electricians actually know what they are and what to do with them. There are around 600,000 professionals in this field who know the ins and outs of designing, installing, and repairing electrical systems. They read blueprints, solve math problems, and make sure the electrical work is up to code.