I'm a little biased because I grew up with it, but I think the best LOGO implementation was for the COLECO ADAM, with its amazing manual: https://archive.org/d

I'm a little biased because I grew up with it, but I think the best LOGO implementation was for the COLECO ADAM, with its amazing manual: https://archive.org/details/coleco-adam-smart-logo-manual https://archive.org/details/coleco-adam-smart-logo-manual