Dear Adisorn The use of physiology as the leverage point for accessing and maintaining a high performance state is best developed in Whispering. There is unfortunately precious little else in print.  I can understand how difficult it might be to secure a copy of "Transformations" anywhere at the moment. Bandler decided that he did not want to continue to publish several books that we co-authored including, "Frogs into Princes", "Tranceformations", "Reframing". While this is, of course, a co-author's prerogative, it leaves me in an awkward position as the co-author and you as the customer who is interested in securing and reading the material. In this particular case, there is an alternative - Patterns of the "Hypnotic Techniques of Milton H, Erickson, M.D." in two volumes (contact metamodels [metabooks@metamodels.com]. Best of luck, John