I can confirm that French paperbacks are in a league of their own, my almost weekly purchases at the French bookstore here in Bucharest are a example of that (never visited Japan, but a French friend of mine who’s also a book rat and who staid in Tokyo for about a year told me about the same you’re saying about them). On the other hand I could never understand the Anglos’ infatuation with a book not being serious enough if it’s not hardback, maybe a reflection of their castle-owning days, when one had enough space to store them. I’m kidding, but only by half.

I’d also want to show my appreciation for Italian publishers, for some of them, at least, the quality of their some of their books can be quite high (Laterza and Einaudi from the top of my head, but there are others, too).