Update on the Tannhaus book: I reached out to the Redditor who posted pictures of his "journalist promo copy" of Eine Reise durch die Zeit to ask if he'd be willing/able to provide scans of the cover, and I was delighted when he replied in the affirmative! In case anyone is interested, I've attached the raw scans here. But I should mention that I'm currently in the process of font-matching every bit of text, with the ultimate intention of creating a printable jacket file. (I've also attached a sample GIF showing a comparison between the scan and what I've recreated so far for the front cover. To be clear, this is "real" vectored text in Photoshop, not just a cleaned-up version of the scanned text, so it should print nice and high-res.) I work in publishing, so luckily I have the knowhow and software to put that all together...ideally, once the jacket is complete, I'd like to print up some copies with blank or notebook-style interiors.