Just went back and listened to Art's March 30th 2000 interview with Ingo Swann. The man is absolutely amazing.
He spoke of his privately published book "Penetration" and so out of curiosity I hit Amazon and looked up Ingo's books. Well, needless to say I was shocked. Ingo's book "Penetration" retails today at over $800.00. Had I known that a few years ago I would have ordered a dozen copies from Ingo when he first printed it.
I'll have to hit the used book stores and hopefully I can find a decently priced copy kicking around somewhere.
Book Link on Amazon.ca