- Starting Forth: An Introduction to the Forth Language and Operating System for Beginners and Professionals (Prentice-Hall Software Series)
- Leo Brodie
- One of the essential references for introducing FORTH to the technical non-specialist. A good introduction if you've never seen FORTH or have been away from it for a while.
This book is hard to find in print these days, but an online version is available at http://home.iae.nl/users/mhx/sf.html