Book excerpt: In an age when managers can no longer rely on formal power, persuading people is more important than ever. Persuasion is a process of learning from colleagues and employees and negotiating shared solutions to solving problems and achieving goals. In The Necessary Art of Persuasion, Jay Conger describes four essential components of persuasion and explains how to master them, providing the information you need to fulfill your managerial mandate: getting work done through others.