The real value of the book tends to be in pretty no-nonsense (and fairly "we-were-just-as-skeptical-as-you-till-w
I also noticed, though, that they have iPhone/iPod/iPad and Android Apps available, that essentially provide all the highs on the site (though not all the highs in the book) within the App. This is pretty awesome, mostly because your iPod is a pretty convenient way to carry around trance induction stuff. The App (well, at least the iPod App) runs 99¢, which I really thought was a bit of a steal if you're looking for a wide variety of trance induction music. They even have a 210 bpm drumming trance induction you can use with some ecstatic body postures, and they cite Dr. Felicitas Goodman's work specifically (which always impresses me).
There are some flaws in the App (at least on the iPod; I haven't tested it on anything else), namely that the screen's backlight doesn't go off while the App is playing sound, so you could potentially drain your battery, and there's no "end tone" that you can set to "end" the trance. . . the sounds seem to just continue to loop into infinity. Still, setting an outside timer would resolve any such issues, I tend to think, and it's better for the sound to go on too long, rather than to cut itself off too short (as it does on the website).
In the end, it's kind of a cool App, and might help a lot of people with trancework. The book does a great job of showing how simple the process of obtaining an "altered state" can be (though I think some of their "highs" aren't all that much "higher" than normal). I just thought I'd pass along the recommendation.