I've tried very hard to make the book readable and understandable to developers, testers, analysts and business people alike. there is one chapter on automation that might be a bit too much for non technical people, but that is clearly marked as such and I advise non techies to skip over it as they won't be interested in automation that much. the rest of the book seems to be well received by many different roles.
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Gojko Adzic
http://gojko.net @gojkoadzic +447765132680