I have his making of STAR WARS and ALIEN books, but haven’t read any of them yet. I did spend a few hours going through the ALIEN book. An interesting deleted scene, involving Ash’s attack on Ripley, was filmed - one that also made it into the comic book adaptation.
I was hoping to get some more information on the deleted shots of the Alien, hunkered down in profile next to an air shaft opening (the same one that Parker & Lambert covered earlier, when tracking Dallas), intercut with Ripley searching for Jones on the ship’s bridge. Oh well.