There’s perhaps no category of literature more impactful than YA. These are the books introduced to us at a pivotal point in our lives: when our grasp on the world is changing just as we begin to claim a place in it. Everything during our teen and early adult years is new, strange and intense: our bodies, our relationships, our perspectives on life, love, loss and all that falls in between. In those formative years, we’re lucky to find books that can make us feel less alone, whether they’re assigned at school, handed down by loved ones or recommended by our peers. Which is why, with the help of a panel of leading YA authors, TIME set out to create a definitive list of the 100 Best YA Books of All Time. In his introduction to the project, panelist and National Ambassador for Young People’s Literature Jason Reynolds reflects on the power of books to help young readers understand themselves. “We can become more of who we already are and feel safer within ourselves,” he writes, “simply by meeting characters who call out to us by the names we call ourselves.”