Picked up this book: "Sayonara bombs!" a troubleshooting guide to System 7. Along with generic system maintenance tips and explanations of a whole range of errors, it also dives into decoding sad mac codes and system error codes.
A book page with a list of error codes
A book page showing sad mac error codes
A red book with an illustration of a bomb on it and the text 爆弾ょ
サヨウナラ！
