A schematic usually omits all details that are not relevant to the information the schematic is intended to convey, and may add unrealistic elements that aid comprehension … In an electronic circuit diagram, the layout of the symbols may not resemble the layout in the circuit.” I like the definition of schematic in Wikipedia: “A schematic, or schematic diagram, is a representation of the elements of a system using abstract, graphic symbols rather than realistic pictures. Before you start learning Ohm’s law, superposition theorem, and delta-wye transforms, you need a basic understanding of how to read (and draw) a circuit schematic. One of the most essential skills for an electrical engineer is the ability to read and create schematics.
There seems to be a limitless amount of information that can be learned in the field of electrical engineering. The Schematic Diagram: A Basic Element of Circuit Design