I would agree the results are generally OK but do not feel magical in most cases (I think in some specific cases they do though). The results can be not great if you add books across many disciplines. For instance if you add "The Elements of Typographic Style" and "The Design of Everyday Things" (https://book.sv/#671857,18518), you do get "Grid Systems in Graphic Design" but under its German name "Rastersysteme für die visuelle Gestaltung."
Wow, quite impressive actually, some of those additional entries are quite good as well, with Ellen Lupton, Steve Krugman, Erik Spiekermann, and then also 1984 and Mark Manson for some reason. Would the latter few be because they're just super widely read/recommended/connected regardless of genre?
Great project anyway, thanks for sharing and responding to my stream of consciousness, I certainly didn't mean to be insulting and hope my tone didn't come across that way.