That's a great point because a lot of the maths literature I am interested in is actually in Russian (optimization, probability). Thankfully there is the "Tran

That's a great point because a lot of the maths literature I am interested in is actually in Russian (optimization, probability). Thankfully there is the "Translations of Mathematical Monographs" book series https://bookstore.ams.org/mmono https://bookstore.ams.org/mmono I had just resigned myself to the fact that I will probably never be able learn Russian. At an optimistic best, perhaps French and Swedish only, if at all.