Automatic Updating

I have a workbook with different worksheets for tracking the daily accountability of employees assigned to my organization . The main worksheet (Tab A) is a list of all employees assigned to my organization. I have another worksheet (Tab B) that I want to list all employees from TAB A who are working in a specific department. I want the employees on Tab B to automatically be added, updated, or deleted based on the changes that are made to them on Tab A. I only need certain information from from the employee's row on Tab A to be added on the row on Tab B. I have no expericence writing code and am not sure what the best method is to accomplish this task. I will appreciate any help.