To change your profile photo:
Click your profile icon in the top menu.
Select your profile name from the dropdown.
On your profile page, click your current profile photo to upload a new one.
To change your cover photo:
Click your profile icon in the top menu.
Select your profile name from the dropdown.
On your profile page, click your cover photo to upload a new one.
Please note that the maximum file size for cover photos is 2MB.