When I was a kid I used to have this Charles Petzold book that I learned this stuff from, it was basically my Bible. I don't have it anymore, I wish I could rem

When I was a kid I used to have this Charles Petzold book that I learned this stuff from, it was basically my Bible. I don't have it anymore, I wish I could remember what it was. People recommend Code a lot, but I don't think that was it. Edit: it wasn't Charles Petzold at all, it was DOS Power Tools by Paul Somerson