Hi Margot, There is no way to automatically merge them, but if you go to the one you want to get rid of and select all the photos, you can then click to MOVE them to the other idea book at the top of the screen. Once they are moved, just delete the one you don't want to keep. Hope that helps!

Hello Emily, I would also like to merge two Ideabooks. However, I am at my computer ... if I open my Ideabook, how do I select all the photos? If I click on a photo, it opens up that photo and then I can't click on any others, and I can't see an option to Select All. Thank you :)

Don't worry, I found it under Organise ;-)