FIRST-BREAK-ALL-THE-RULES-WHAT-THE-WORLDS-GREATEST-MANAGERS-DO-DIFFERENTLY

First, Break All The Rules: What The World's Great Managers Do Differently by Marcus Buckingham. A book discussing about what managers knows and practices.
THE-ESSENTIAL-DRUCKER-THE-BEST-OF-SIXTY-YEARS-OF-PETER-DRUCKERS-ESSENTIAL-WRITINGS-ON-MANAGEMENT-COLLINS-BUSINESS-ESSENTIALS
The Essentiall Drucker by Peter F. Drucker. An in-depth insight on management that covers all the practical and philosopical way leadership.
THE-GOAL-A-PROCESS-OF-ONGOING-IMPROVEMENT

The Goal: A Process of Ongoing Improvement by Eliyahu M. Goldratt. A great story about a plant manager that give insights about management career.