I was just going to comment on this book; one of my favorites as well. The follow on book "Thinking Forth" was similarly mind opening. http://thinking-forth.sourceforge.net/

I have a book on Forth, which I currently can't remember the title or author of but it had a blue cover a bit like Starting FORTH (I'm pretty sure it wasn't this) but was typeset on a 7-pin dot-matrix printer. Literally all the body copy is dot-matrix.

I think it's in storage just now :-/

Oh, also the Jupiter Ace programming manual, which starts off with a very simple introduction to Forth and by around Chapter 22 has circuit diagrams for homebrew peripherals.