21 Dirty Tricks at Work21 Dirty Tricks at Work is about lies. The type of underhand, pernicious and downright Machiavellian scheming that goes on in our businesses every day. An estimated 7. 8bn is lost each year in the UK alone though unnecessary and counter productive office politicking. But 21 Dirty Tricks at Work is also a book of hope. The mission statement of the authors is to expose these behaviours and provide practical, workable tools for the vast majority who want