Design, simulate, and learn about digital and analog electronics. Circuit Shop includes an electronics tutorial and an easy-to-use graphical CAD tool to allow simple digital and analog electronic circuits to be constructed and analyzed. It includes drawing tools to construct simple electronic circuit schematics consisting of digital and analog devices such as logic gates, flip-flops, op amps, dependent sources, ICs, transistors, resistors, batteries, and so on; a tutorial that teaches basic digital and analog electronic circuit concepts; digital circuit design and analysis capability using digital sources, logic gates, flip-flops, timers, sequence generators, digital displays, ICs, and digital oscilloscopes; analog circuit design and simulation capability to perform DC analysis, sinusoidal steady state analysis and frequency response; and a simple paint toolkit to allow text, lines, ovals, and rectangles to be added as circuit annotations. The fully indexed PDF document consists of a reference manual and tutorial.