Leading Change - John P. Kotter
John Kotter’s now-legendary eight-step process for managing change with positive results has become the foundation for leaders and organizations across the globe. By outlining the process every organization must go through to achieve its goals, and by identifying where and how even top performers derail during the change process, Kotter provides a practical resource for leaders and managers charged with making change initiatives work.
Influencing - Robert Cialdini
Influence, the classic book on persuasion, explains the psychology of why people say "yes"—and how to apply these understandings. Dr. Robert Cialdini is the seminal expert in the rapidly expanding field of influence and persuasion.