The three worlds of the department store; the managers world, the customers world, and the saleswomen's world were created by:

The three worlds of the department store; the manager’s world, the customer’s world, and the saleswomen's world were created by the customers, the working class, department store managers and the blue collar workers. There are hundreds and thousands of department stores in the world; every department store has a staff, working staff, manager, owner etc.