In some libraries, there are delivery lists provided by the Gestapo or entries in acquisition books that contain information about previous owners or suppliers. Countless books also became part of library holdings as "gifts" from the Nazi regime. A large part was originally Jewish property, which those who fled the country were forced to leave behind. Often, only the traces preserved in the very books in the form of stamps, autographs, dedications, bookplates, and labels give any indication of who the original owners were.