For an individual to develop self-improvement, he or she must have a clear goal. on the other hand, personal development is seen as potential behavior that results from experience, which implies that personal development cannot be directly observed but can only be inferred from behavior (Hulse et al. 1980). Managers must learn new skills to improve their work performance and employee relations; to be an effective manager we must continue to learn new things that help him adapt to challenges that may occur in the workplace (Brine,