StartingForth is an introduction to programming using ForthLanguage, written by LeoBrodie in 1981. Forth has changed since then, and a couple of online versions updated for AnsForth are available on the web.
- http://home.iae.nl/users/mhx/sf.html - Marcel Hendrix's online adaption, replacing the illustrations with clip art. Also contains a bonus chapter 13 EasterEgg.
- http://www.forth.com/starting-forth/ - Online edition by the copyright holders with the author's original illustrations.
ThinkingForth is a more advanced companion to StartingForth by the same author.