Apple has recently dropped support for publishing books, calendars, etc… directly via Photos.app. This is a big step back for Apple as I've had several clients this holiday season who are having to look at new methods to publish their family books. Apple now suggests its users add a plugin from the App Store that continues to allow publishing within Photos. Mimeo is currently the better of all the choices in the App store but still does not live up to the ease of the previously built in method.

Shutterfly is a good alternative but requires that you pull your pictures out of photos then upload them to their website.