Think of holograms and you probably think of Star Wars, a glitchy Princess Leia asking Ben Kenobi for some help. And while we wait (and wait and wait) for that technology to come about and revolutionize our Skype chats, there are other happenings in the field of holography going on. One of those is British artist Jeff Robb's holographic sculptures, which are currently lighting up a gallery space in the back streets of Shoreditch, London.