Office managers are business professionals who are responsible for a diverse set of administrative tasks. Whether calculating payroll or hiring new employees, office managers must perform their duties with decisiveness and accuracy for a business to perform well. Office duties can vary significantly based on the size and type of organization of employment. For example, managers working within a small dental office may be required to greet patients, set appointments and handle billing, while managers working within a corporate office may focus exclusively on one aspect of business, such as insurance processing. Duties also might include evaluating office procedures and looking for more efficient ways of conducting processes.