This document discusses organizational change and its key aspects. It defines organizational change as alternations that occur in a company's overall work environment. Change can result from both external forces like market changes as well as internal forces such as human resource issues. Change happens at various levels from individual to group to the entire organization. There are different types of change including strategic, structural, process-oriented and people-oriented. Successful change management involves three stages - unfreezing the current situation, transitioning to the new change, and refreezing the change to make it permanent. Resistance to change is natural but can be reduced through effective communication and involvement of employees in the change process.