Old Earth books contain all sorts of stories and knowledge the Star Gods find dangerous for some reason, probably sheer nastiness. There are, however, people quite desperate to get these books, and we can squeeze a good coin out of these weirdos.
Ancient Log 378B-12, Ancient Log 701X-07 , Ancient Log 655E-81, Ancient Log 359E-99, Ancient Log 178S-72, Ancient Log 506A-22, Ancient Log 221R-17, Ancient Log CI30-51, Ancient Log RX22-11, Ancient Log ACO6-B5, Ancient Log UAC7-X1, Ancient Log MAD22-N7, Gnome Tome #3, Gnome Tome #5, Gnome Tome #6, Gnome Tome #13, Teachings of Wise Wu, Musings of an Immortal, Fuso Sword, Olde Sworde, Warhammer, Cat Paws, Tommy, Scoped Carbine, Scoped Magnum, Concealable RR, Chem Grenade, Uranium Weapons Documentation, UAC Space Suit, Maid Outfit, Topaz, Sapphire, Emerald, Ruby, Diamond, Silver Bar, Ol' Coins, Old Money Briefcase, Myths: Leo and the Dragon, Myths: Mun Tzu and Wise Wu, Myths: Of Cats and Men, #127, VIP: Zombia