Imagine a company that has salespersons throughout the country who record all their sales data in a workbook. If you are the sales manager, how could you use the concepts in this module to pull it all together so that you have summarized data from the individual workbooks? Do you think it would be best to pull all the data from the individual workbooks into a single workbook? Or do you think it would be better to keep the data in separate workbooks and then pull the summary information into a single workbook? Why do you come to this conclusion?