I don't remember that we read that many books, like Vinay said it was mostly texts provided in the textbooks. Much of that was Finnish and Swedish classics, but you don't really get what's great with a book if you only read like 10 pages from it, taken from the middle of the book somewhere. We'd read 2-3 books per year and do reports on those. As I remember it, you could pretty much choose what you liked from a long list. I'd always read most of the books on the list, and I didn't see the logic that they were chosen with. Mostly contemporaries, very little classics.
But given that in the classroom there'll be someone like me, who has read most everything there is in the school library, and someone like my husband, who has read a grand total of 3 books in his whole life (and he read those after meeting me..), I understand that it is difficult to find something that suits us all. Much easier to concentrate on grammar. For the languages I read we never read entire books, but I remember we had a lot of newspaper material on interesting subjects like politics, gender issues, preservation of wildlife and such. I really enjoyed that.
No, it's my Mom I have to thank for my habit of reading. She worked in a library when I was 7-14 years old. She'd never give explicit recommendations, she'd just say: oh I suppose you'll find something in that shelf there, and when I had found something she'd give little hints if she thought I'd like the book or not. Or she'd say, help me to put these new books in the shelf and you get to look through them and be the first to borrow them if there's something you want to read.