Circuit Diagram

I believe that the idea of symbols is a way that we could represent something without words. I think we use symbols for a circuit diagram mostly to represent without words as well because it's a diagram. We want to express a drawing without using words. I think that using symbols helps us understand the object we are talking about easier, for example a light bulb is mostly shown as a circle and a wire inside of it, because that's how light bulbs are. Something that is kind of hard is understanding what some of the symbols mean. Some people don't know what some symbols might mean, for example resistors. Resistors are just triangle lines, no one knows what it is until it is explained unlike a light bulb or a switch.