Management primarily means the process of planning, organization, human resource management, management and control, as well as organizing and managing tasks, resources and reserves, a process aimed at the achievement of a given objective. Leadership is the process of directing the behavior of others towards achieving a goal, where routing means getting people to behave in a certain way and follow a certain path. Under the leadership style mean the synthesis of individual methods, procedures and techniques of management of managers in certain types of organizations, so it is important for a leader to know about the different leadership styles and to try to use a variety of styles when to do so by the application situation. Knowledge obtained during the theoretical part of the work have been applied for company Studio Interier LTD from Zagreb, where they observed and described leadership style as a function of process management.