Can I work with the same proyect in two Macs?
I have created one iPhoto book in Mac Pro during a trip, is it possible continuing this project with my Mac in home?. If were possible, how?
OS X El Capitan (10.11.6)
By moving the Library from one Mac to the other.
But... Apple no longer sell books and other print material via iPhoto or Aperture. This service ceased on March 3, 2016. Print products may only be purchased via the new Photos.app that comes with OS 10.10 or later.