The cover photo is what appears on the cover of your Qeepsake Book, you can change the photo at any time. If you are on http://app.qeepsake.com/book, click on the gear icon next to your child's name. This will take you into the journal settings page.
Then click on the 'Add a cover image' button and then hit the 'Update Journal' button to save the photo. You won't see the photo change until you go back to preview your book at http://app.qeepsake.com/book.
You can also change the Book's cover photo from the mobile app.
1. In the menu, click on the Account & Settings button
2. Then click on the Journal Settings button
3. Select the journal you want to edit
4. Click on the 'Edit cover photo' button to change the photo on the cover of the book.