Six Secrets is a classic Chinese manual of strategy, from the era of Warring States, traditionally studied along with Sun Tzu's Art of War. Six Secrets presents psychological and cultural strategies of warfare in addition to military tactics.***Thomas Cleary holds a PhD in East Asian Languages and Civilizations from Harvard University and a JD from the University of California, Berkeley, Boalt Hall School of Law. He told us in an interview:"I am not in Engaged Buddhism, have never supported cults, am not a member of any academic clique, and do not belong in organized education. I am not confined to any group. I want to stay independent and reach those who want to learn directly through my books... Of the eight languages and some 80 books I translated, I would say Old Irish was the most challenging."