Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Colourful and Dangerous

The friend who lent this to me was surprised when I showed him the Acknowledgments page listing a handful of inspirational business books. However secondhand the business anecdotes might be, the sheer energy of Leadership Secrets is inspirational. But as other reviewers have pointed out, contrary to Mr. Marcinko, Business is not War. Please don't visit his battle-inspired insights on your staff.