answer:Interesting. What did the book say about the industry? I am suspicious of them. Some more than others. I believe they sell motivation, and I’m not sure how long motivation really lasts in isolation. Perhaps they sell an organization to belong to, as well. That might be more effective in the long run. But mostly I think they are cheerleaders and thus, not my type. I am a guy who prefers realism. Cheerleaders invariably disappoint me. They seem like liars after a while. So, it’s not my cup of tea.