Only idiots or snobs ever really thought less of 'genre books' of course. There are stupid books and there are smart books. There are well-written books and badly written books. There are fun books and boring books. All of these distinctions are vastly more important than the distinction between the literary and the non-literary.
...Generally people don't recomend this type of book at all. It is far too interesting. Perhaps you have had other books recomended to you. Perhaps, even, you have been given books by friends, parents, teachers, then told that these books are the type you have to read. Those books are invariably described as "important"- which in my experience, pretty much means that they're boring. (words like meaningful and thoughtful are other good clues.)