By joining Book Club, your first photo book is automatically made within one hour from your latest 50 photos. However, Time Machine is a totally optional feature that allows you to go back even further than your most recent 50 photos, and create books from memories past.
Simply pick the date range, choose the photo source, and place your order.
Time Machine books include 50 photos per book, so it’s best to adjust the Time Machine date range bar as close as you can to a photo quantity that includes a multiple of 50. You will be charged for each additional book created.