Serious users of Forth will be aware of the critic"s jibe that the language encourages "write-only" programming. Dick Pountain shows in this book how this description might soon become outdated: a systematic approach to building data structures can result in reusable, debugged and tested modules of code. Whether you are an enthusiastic amateur or a professional involved in new and complex instrument control, or whether you use a home computer or a large and powerful one, every Forth programmer and implementer should read this book.