Probably the first time, someone talks about cats to explain Ohm's Law and the basics of electronics.
Unexpectedly, the zine starts with a historical background on ancient counting systems – which does make sense since computers also use different systems than decimal. After learning about binary, hexadecimal and converting between systems, you learn about circuits and logic gates. As usual, each step is accompanied by many drawings, so absolute beginners can follow along.
Yet only four stars, since another round of editing would have really helped polish this issue.