1. Open up Outlook
NOTE: Depending on which version of outlook you use your layout may feature some discrepancies
Click on the calendar icon in the bottom left hand corner
2. You should now be looking at a screen somewhat resembling this
3. Right click the calendar who's permissions you wish to share to bring up this little menu
Select the option "Change Sharing Permissions..." near the bottom of the list.
4. Once you've done that this menu should pop up
Click the "Add..." button
5. Once you've clicked that button, this menu will appear on your screen
Here you can either scroll through the names manually or search for the person you want in the bar at the top. Once you've selected the name you want, click the "Add" button then click "OK".
This person will now have access to your calendar.
If you have any questions in regards to this or any other topic, please feel free to contact the IT department at firstname.lastname@example.org.
If the person you have given access has trouble locating your Calendar, please direct them to this article.