Book Review: George Siedel and Helena Haapio, Proactive Law for Managers – A Hidden Source of Competitive Advantage, Gower Publishing 2011 - European Business Law Review View Book Review: George Siedel and Helena Haapio, Proactive Law for Managers – A Hidden Source of Competitive Advantage, Gower Publishing 2011 by - European Business Law Review Book Review: George Siedel and Helena Haapio, Proactive Law for Managers – A Hidden Source of Competitive Advantage, Gower Publishing 2011 24 1 European Business Law Review