By default, Workbooks reports are private to the user who created them.  To share a report with another User or User Group follow the steps below:

• Open the report you want to share.
• Click Edit this Report (in the column on the left-hand side).
• Click Sharing Permissions (the padlock at the top of the report).
• Click Add Rule. From the dropdown picklist choose the User/User Group with whom you want to share the report and use the checkboxes to control what that User/User Group can do. If you give another User permission to modify the report, it might not look the same the next time you open it!
• To add more Users/User Groups click Add Rule again.
• To finish, click Save & Close.