There is half a trillion dollars of lost productivity because of people calling in sick to work because they don’t want to work with someone, says Peter Economy, Wall Street Journal best-selling author.

Known for his wildly successful book, Managing for Dummies, Peter’s launched his newest book: Wait, I’m Working With Who?!? because he realized how pervasive toxic workplaces, toxic colleagues and toxic bosses were. People need to have the courage to confront to take on toxicity, not just tolerate it, he says.