Your favorite genre.
My favorite genre (if you couldn’t already tell) would have to be Young Adult. Some of my favorite YA books are:
I really enjoy reading YA, I feel like YA books are easier to relate to. I was already that age and went through similar things or at least know of someone who has. I can understand how they feel most of the time.
I find it hard to read books about people who are 35 and up. Especially if they are married or have kids, because I don’t really relate to that.