A few I enjoyed: * Outcomes Over Outputs: Why Customer Behavior is the Key Metric for Business Success * Strategy Rules: Five Timeless Lessons from Bill Gates

A few I enjoyed: * Outcomes Over Outputs: Why Customer Behavior is the Key Metric for Business Success * Strategy Rules: Five Timeless Lessons from Bill Gates, Andy Grove, and Steve Jobs * The Lean Startup (often referenced in terms of agile processes, but I think the most important lessons are around product management)