The 'original' General Semantics thinker was Count Alfred Korzybski, who wrote Science and Sanity. If you want a book that should come first on your list. I believe that most of the pertinent information you can find on their website, though; you apparently have discovered that. Also, Robert Anton Wilson wrote a fairly interesting introduction to E-Prime which you can find on his website at www.rawilson.com. If you have any more questions about General Semantics you can email me, the tab on these boxes ought to work and I shall try to answer them. I think that you should keep in mind that, as they say somewhere on the site, Aristotle himself wrote and thought about states of Being with great precision. I believe that General Semantics serves the same purpose, in spite of the non-aristotelian moniker, by getting us to question our assumptions at all times when we use To Be in predication and in identity. If you'll allow my presumptiveness I would say that "is" the most important lesson to learn from them. Anyways, I wish you well.

KO