This overview shows the pages with basic concepts in electrical engineering. This includes: the basic electronics page where the fundamentals of electricity and the concepts of voltage, current, and resistance are explained. Ohm’s Law can be used to determine and explain the relationships between these three quantities. The other pages also relate to basic electronics, but more with an application, such as series, parallel, and compound resistor circuits, whose equivalent resistance, partial currents, and voltage drop are described. The pages in this overview provide the reader/technician with the foundational knowledge to then work with the electronic components and diagnostics.