Hi Kathryn!
I'm so glad that you chose to visit the Disney Parks Moms Panel with your question.
If you choose to purchase a Photo Book through Disney's PhotoPass online, you have many options to customize your book! First, you'll connect your PhotoPass Card(s) from your visit. When putting the cover and pages of your book together, you'll be able to select from the photos you had taken by Disney PhotoPass Photographers in the parks during your visit as well as the many, stock photos also available (just like those included on the PhotoCD if you choose to purchase that in advance - I've included the Special Online
Pre-Visit Savings Offers as well!). You'll even have the option to upload your own photos from your computer, taken with your own camera during your visit!
I've included a handy link to the Disney's PhotoPass site for you which reviews some of the steps and options available to you while
creating a Photo Book. Take a browse through this 'help' page and it should help to answer any additional questions about the product that you may have!
I hope this information is helpful to you Kathryn!
If you think of additional questions, please feel free to write me back any time. I'd love to hear from you again!
Wishing you a simply Magical time at Walt Disney World!
Kirsten