Be sure you are logged into Chatbooks.com, and go to the Bookshelf to select the Monthbook you want to add captions to.
Once you are in a specific Monthbook, scroll down to see the pages in the Monthbook.
Click on an image that you want to add a caption to and click "Caption" from the right-hand side Page Options.
Type your Caption in the caption field, and then click "Save" once your caption has been added.
You can continue to scroll through the book's photos to add any other Captions.
To edit a caption, click on the photo with the caption, update the text, and click "Save."
To learn how to add captions to Monthbooks through the app, click here.