Just like every scene J.J. Abrams filmed didn’t make the final cut, not every idea proposed early on was fully fleshed out for Star Wars: The Force Awakens. Thanks to a new book called The Art of Star Wars: The Force Awakens, we’re getting a fun behind-the-scenes look at some of the early ideas that didn’t quite make it past the concept stage, whether due to creative differences or the ideas simply not fitting into the overall story.

There are a lot of cool pictures, including quirky new ships, a world known as Crime City, and even Anakin Skywalker as a Force ghost. The latter idea would have been to show Anakin as part of both the light and dark sides of the Force; one communicating with Luke and the other with Ren. Of course, if you’ve seen the movie, you know Anakin doesn’t appear in the film at all, though we do get a brief look at Darth Vader’s burned helmet.

The concept art serves as a fun reminder of what could have been had every idea come to fruition. You can check out some of the book’s images in the gallery above, or you can wait to pick up your own copy from Amazon (it’s currently out of stock).