Desktop Publishing is a textbook publishing company with a headquarters location, a warehouse, and three sales offices that each have a sales manager and sales reps. Desktop sells to schools, colleges, and individual customers. Many authors write more than one book for Desktop, and some books are written by more than one author. Desktop maintains an active list of more than 100 books, each identified by a universal code called an ISBN number. You have been asked to draw an ERD for the Desktop information system, and to include cardinality notation. The diagram is already made, just explain the diagram in 300 words

Books Books ISBN Number (Primary) Pub Year Cost Pages ISBN Number (Primary) Pub Year Cost Pages Customers Desktop Text Publications Category Number (Primary) Address Phone Number SalesOffice Headquarters Warehouse Sales Office_Number (Primary) Location Location Location Sales_Manager Sales_Rep SM ID Name Phone Number SR ID Name Phone Number