How to use Mac to zip up your pictures

Step 1.  Place all of your pictures in the following file structure:
(Note: "your_last_name" should actually be your last name that appears on your billing/shipping address)

Step 2.  After all the pictures are in the appropriate folders, return to the top level folder:

Step 3. Control-click or right-click the folder and select: "Create Archive of ..."

Step 4. After Mac OS is done 'zipping up' your pictures, it will place a new file named your_last_name.zip next to your folder. This new file is the file you will upload to Picture Mosaics.