Random Robot.
I'll probably purchase it myself once I'm done with the book I'm currently reading. There's plenty of info on Kirk and
PT already provided.
Kirk Lorange - no Apostrophe, slide guitarist from Australia
PT Link
PlaneTalk - The Truly Totally Different Guitar Instruction Book/DVD
More info
PlaneTalk - The Truly Totally Different Guitar Instruction Book/DVD
If this site is anything to go by I have no doubt that PT is a great teaching aid.