OMG the books in other languages thing gets on my nerves! It's almost every time and every shelf with recommendations. The really frustrating part is when an interesting looking cover pulls me in then finding out I won't be able to read it. I never really noticed it until I added a few books that were originally published in the author's native language but I had read the English translation. My theory is the algorithm is recommending other books written in the original language. I wish there was a way to limit recommendations to certain languages.