The young adult genre has gained plenty of traction in the publishing world, thanks in part to popular book adaptations like The Giver, The Maze Runner and our personal favorite, The Hunger Games. But as much as we do enjoy coming-of-age books that take us straight back to our 20s, we’re always on the lookout for compelling book series for adults, whether it’s a charming contemporary romance or a nightmare-worthy thriller that’ll keep us up at night. From Julia Quinn’s Bridgerton series to James